Enterasys C5K125-48 Configuration manual

P/N 9034662-02

Enterasys

®

Fixed Switching

Configuration Guide

Firmware 6.61.xx and Higher

i

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Part Number: 9034662-02 October 2012

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Contents

Chapter 1: Setting Up a Switch for the First Time

Before You Begin ...........................................................................................................................................1-1

Connecting to the Switch ................................................................................................................................1-2

Downloading New Firmware ...........................................................................................................................1-3

Deleting a Backup Image File ..................................................................................................................1-5

Additional Configuration Tasks .......................................................................................................................1-5

Setting User Accounts and Passwords ....................................................................................................1-5

Controlling In-band Access to the Switch .................................................................................................1-6

Changing SNMP Defaults ........................................................................................................................1-7

Saving the Configuration and Connecting Devices ........................................................................................1-7

Configuring a Stack of New Switches .............................................................................................................1-8

Where to Go Next ...........................................................................................................................................1-9

Getting Help ..................................................................................................................................................1-10

Downloading Firmware via the Serial Port ...................................................................................................1-10

Chapter 2: Configuring Switches in a Stack

About Switch Operation in a Stack .................................................................................................................2-1

Stack Initialization ....................................................................................................................................2-1

Configuration Management ......................................................................................................................2-2

Installing a New Stackable System of Up to Eight Units ................................................................................2-2

Installing Previously-Configured Systems in a Stack .....................................................................................2-3

Adding a New Unit to an Existing Stack .........................................................................................................2-3

Removing Units from an Existing Stack .........................................................................................................2-4

Stack Disruption Times ............................................................................................................................2-4

Creating a Virtual Switch Configuration ..........................................................................................................2-4

Example ...................................................................................................................................................2-5

Considerations About Using “clear config” in a Stack ....................................................................................2-5

Configuring Standalone A4 Stack Ports .........................................................................................................2-6

When Uplink Ports are Configured as Ethernet Ports ........................................................................2-6

Chapter 3: CLI Basics

Switch Management Methods ........................................................................................................................3-1

Using the Command Line Interface ................................................................................................................3-1

Starting a CLI Session .............................................................................................................................3-1

Connecting Using the Console Port ...................................................................................................3-2

Connecting Using Telnet or SSH........................................................................................................3-2

Logging In ................................................................................................................................................3-3

Using a Default User Account ............................................................................................................3-3

Using an Administratively Configured User Account..........................................................................3-3

Clearing and Closing the CLI ...................................................................................................................3-3

Navigating the Command Line Interface ..................................................................................................3-3

Getting Help with CLI Syntax..............................................................................................................3-3

CLI Command Defaults Descriptions .................................................................................................3-3

CLI Command Modes.........................................................................................................................3-4

Performing Keyword Lookups ............................................................................................................3-4

Displaying Scrolling Screens..............................................................................................................3-5

Abbreviating and Completing Commands..........................................................................................3-5

Basic Line Editing Commands............................................................................................................3-6

Configuring CLI Properties .............................................................................................................................3-6

Example CLI Properties Configuration .....................................................................................................3-7

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CLI Properties Display Commands ..........................................................................................................3-7

Chapter 4: System Configuration

Factory Default Settings .................................................................................................................................4-1

Initial Configuration Overview .........................................................................................................................4-5

Advanced Configuration Overview .................................................................................................................4-6

Licensing Advanced Features ........................................................................................................................4-8

License Implementation Differences ........................................................................................................4-8

Node-Locked Licensing......................................................................................................................4-9

Non-Node-Locked Licensing ..............................................................................................................4-9

Licensing in a Stack Environment ............................................................................................................4-9

Applying Node-Locked Licenses in a Stack .....................................................................................4-10

Applying Non-Node-Locked Licenses in a Stack..............................................................................4-10

Adding a New Member to a Licensed Stack.....................................................................................4-11

Displaying and Clearing Licenses ..........................................................................................................4-11

SNTP Configuration ......................................................................................................................................4-11

Unicast Polling Mode .............................................................................................................................4-12

Broadcast Listening Mode ......................................................................................................................4-12

SNTP Authentication ..............................................................................................................................4-12

Authentication Key and Trusted Key List..........................................................................................4-12

SNTP Defaults .......................................................................................................................................4-13

Configuring SNTP ..................................................................................................................................4-13

SNTP Configuration Example ................................................................................................................4-15

DHCP Configuration .....................................................................................................................................4-16

DHCP Relay Agent ................................................................................................................................4-16

DHCP Server .........................................................................................................................................4-16

IP Address Pools ....................................................................................................................................4-17

Automatic IP Address Pools.............................................................................................................4-17

Manual IP Address Pools .................................................................................................................4-17

Configuring a DHCP Server ...................................................................................................................4-17

DHCP Configuration on a Non-Routing System...............................................................................4-18

DHCP Configuration on a Routing System.......................................................................................4-18

Managing and Displaying DHCP Server Parameters ............................................................................4-20

DHCP Server Defaults ...........................................................................................................................4-20

Configuring DHCP IP Address Pools .....................................................................................................4-21

Automatic IP Address Pool Configuration ........................................................................................4-21

Manual IP Pool Configuration...........................................................................................................4-21

Configuring Additional Pool Parameters .....................................................................................4-23

Telnet Overview ............................................................................................................................................4-23

Configuring Telnet ..................................................................................................................................4-24

SSH Overview ..............................................................................................................................................4-24

Configuring SSH ....................................................................................................................................4-24

MAC Address Settings .................................................................................................................................4-24

Age Time ................................................................................................................................................4-24

Limiting MAC Addresses to Specific VLANs ..........................................................................................4-25

Setting the MAC Algorithm Mode ...........................................................................................................4-25

New MAC Address Detection .................................................................................................................4-25

Configuring Node Aliases .............................................................................................................................4-26

Chapter 5: User Account and Password Management

User Account Overview ..................................................................................................................................5-1

Emergency Access User Account ............................................................................................................5-2

Account Lockout .......................................................................................................................................5-3

Port Lockout .......................................................................................................................................5-3

User Account Configuration .....................................................................................................................5-3

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Password Management Overview ..................................................................................................................5-6

System Level Password Settings .............................................................................................................5-6

Defaults ..............................................................................................................................................5-7

System Password Settings Configuration ................................................................................................5-8

Password Reset Button Functionality .............................................................................................................5-9

Management Authentication Notification MIB Functionality ...........................................................................5-9

Chapter 6: Firmware Image and File Management

Managing the Firmware Image .......................................................................................................................6-1

Downloading a Firmware Image ..............................................................................................................6-1

Downloading from a TFTP or SFTP Server........................................................................................6-2

Setting the Boot Firmware ........................................................................................................................6-3

Reverting to a Previous Image .................................................................................................................6-3

Setting TFTP Parameters ........................................................................................................................6-4

Managing Switch Configuration and Files ......................................................................................................6-4

Configuration Persistence Mode ..............................................................................................................6-4

Using an I-Series Memory Card ...............................................................................................................6-5

Memory Card Operation.....................................................................................................................6-5

Displaying and Saving the Configuration and Creating a Backup ............................................................6-5

Displaying the Configuration...............................................................................................................6-6

Creating a Backup Configuration File.................................................................................................6-6

Applying a Saved Configuration ...............................................................................................................6-7

Managing Files .........................................................................................................................................6-8

Chapter 7: Configuring System Power and PoE

Configuring Redundant Power Supplies .........................................................................................................7-1

Power over Ethernet Overview .......................................................................................................................7-1

Implementing PoE ....................................................................................................................................7-2

Allocation of PoE Power to Modules ........................................................................................................7-2

When Manual Mode is Configured .....................................................................................................7-3

Management of PoE Power to PDs .........................................................................................................7-3

Configuring PoE .............................................................................................................................................7-4

Stackable A4, B3, and C3 Devices ..........................................................................................................7-5

Stackable B5 and C5 Devices ..................................................................................................................7-6

G-Series Devices .....................................................................................................................................7-7

Example PoE Configuration ...................................................................................................................7-10

PoE Display Commands ........................................................................................................................7-10

Chapter 8: Port Configuration

Port Configuration Overview ...........................................................................................................................8-1

Port String Syntax Used in the CLI ..........................................................................................................8-1

Examples............................................................................................................................................8-2

Console Port Settings ..............................................................................................................................8-2

VT100 Terminal Mode........................................................................................................................8-3

Port Settings .............................................................................................................................................8-3

Port Status..........................................................................................................................................8-3

Port Name or Alias .............................................................................................................................8-3

Auto-Negotiation and Advertised Ability .............................................................................................8-4

Port Speed and Duplex Mode ............................................................................................................8-4

MDI / MDIX Cable Type......................................................................................................................8-4

Port Flow Control................................................................................................................................8-5

Jumbo Frame Support........................................................................................................................8-5

Broadcast Suppression Threshold .....................................................................................................8-5

Protected Port Mode...........................................................................................................................8-6

Displaying Port Status ..............................................................................................................................8-6

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Displaying Cable Status .....................................................................................................................8-7

Configuring SFP Ports for 100BASE-FX ..................................................................................................8-7

Example..............................................................................................................................................8-8

Configuring Port Link Flap Detection ..............................................................................................................8-8

Basic Link Flap Detection Configuration ..................................................................................................8-9

Example .................................................................................................................................................8-10

Link Flap Detection Display Commands ................................................................................................8-11

Transmit Queue Monitoring ..........................................................................................................................8-11

Port Mirroring ................................................................................................................................................8-12

Mirroring Features ..................................................................................................................................8-12

Configuring Port Mirroring ................................................................................................................8-13

Remote Port Mirroring ............................................................................................................................8-13

Configuring Remote Port Mirroring...................................................................................................8-14

Configuring SMON MIB Port Mirroring ...................................................................................................8-15

Procedures.......................................................................................................................................8-15

Chapter 9: Configuring VLANs

VLAN Overview ..............................................................................................................................................9-1

Using VLANs to Partition Your Network ...................................................................................................9-1

Implementing VLANs ......................................................................................................................................9-2

Preparing for VLAN Configuration ............................................................................................................9-3

Understanding How VLANs Operate ..............................................................................................................9-3

Learning Modes and Filtering Databases ................................................................................................9-3

VLAN Assignment and Forwarding ..........................................................................................................9-4

Receiving Frames from VLAN Ports...................................................................................................9-4

Forwarding Decisions.........................................................................................................................9-5

Example of a VLAN Switch in Operation ..................................................................................................9-5

VLAN Support on Enterasys Switches ...........................................................................................................9-6

Maximum Active VLANs ...........................................................................................................................9-6

Configurable Range .................................................................................................................................9-6

VLAN Types .............................................................................................................................................9-6

Static and Dynamic VLANs ................................................................................................................9-6

Port-Based VLANs .............................................................................................................................9-6

Policy-Based VLANs ..........................................................................................................................9-7

GARP VLAN Registration Protocol (GVRP) Support ...............................................................................9-7

How It Works ......................................................................................................................................9-7

Configuring VLANs .........................................................................................................................................9-8

Default Settings ........................................................................................................................................9-9

Configuring Static VLANs .........................................................................................................................9-9

Example Configuration .....................................................................................................................9-11

Creating a Secure Management VLAN ..................................................................................................9-11

Configuring Dynamic VLANs ..................................................................................................................9-12

Configuring Protocol-Based VLAN Classification ...................................................................................9-13

Example Configuration .....................................................................................................................9-13

Monitoring VLANs ..................................................................................................................................9-14

Terms and Definitions ...................................................................................................................................9-14

Chapter 10: Configuring User Authentication

User Authentication Overview ......................................................................................................................10-1

Implementing User Authentication .........................................................................................................10-2

Authentication Methods ..........................................................................................................................10-2

IEEE 802.1x Using EAP ...................................................................................................................10-2

MAC-Based Authentication (MAC)...................................................................................................10-2

Port Web Authentication (PWA) .......................................................................................................10-3

Multi-User And MultiAuth Authentication..........................................................................................10-3

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Remote Authentication Dial-In Service (RADIUS) .................................................................................10-7

How RADIUS Data Is Used..............................................................................................................10-8

The RADIUS Filter-ID.......................................................................................................................10-8

RFC 3580 — VLAN Authorization ....................................................................................................10-8

Policy Maptable Response.............................................................................................................10-10

Configuring Authentication .........................................................................................................................10-12

Configuring IEEE 802.1x ......................................................................................................................10-14

Configuring MAC-based Authentication ...............................................................................................10-15

Configuring Port Web Authentication (PWA) .......................................................................................10-16

Optionally Enable Guest Network Privileges..................................................................................10-17

Configuring MultiAuth Authentication ...................................................................................................10-17

Setting MultiAuth Authentication Mode...........................................................................................10-17

Setting MultiAuth Authentication Precedence ................................................................................10-18

Setting MultiAuth Authentication Port Properties............................................................................10-18

Setting MultiAuth Authentication Timers.........................................................................................10-19

Displaying MultiAuth Configuration Information..............................................................................10-20

Configuring VLAN Authorization ..........................................................................................................10-20

Configuring RADIUS ............................................................................................................................10-21

Configuring the Authentication Server............................................................................................10-21

Configuring User + IP Phone Authentication .......................................................................................10-22

Example..........................................................................................................................................10-23

Authentication Configuration Example .......................................................................................................10-25

Configuring MultiAuth Authentication ...................................................................................................10-26

Enabling RADIUS On the Switch .........................................................................................................10-26

Creating RADIUS User Accounts on the Authentication Server ..........................................................10-26

Configuring the Engineering Group 802.1x End-User Stations ............................................................10-26

Configuring the Printer Cluster for MAC-Based Authentication ...........................................................10-27

Configuring the Public Area PWA Station ............................................................................................10-28

Terms and Definitions .................................................................................................................................10-28

Chapter 11: Configuring Link Aggregation

Link Aggregation Overview ...........................................................................................................................11-1

Using Link Aggregation in a Network .....................................................................................................11-1

Implementing Link Aggregation ..............................................................................................................11-2

LACP Operation .....................................................................................................................................11-2

How a LAG Forms ..................................................................................................................................11-3

Attached Ports ........................................................................................................................................11-5

Single Port Attached State Rules .....................................................................................................11-7

LAG Port Parameters .............................................................................................................................11-7

Static Port Assignment ...........................................................................................................................11-8

Flexible Link Aggregation Groups ..........................................................................................................11-8

Configuring Link Aggregation .......................................................................................................................11-9

Link Aggregation Configuration Example ...................................................................................................11-11

Configuring the S8 Distribution Switch ...........................................................................................11-14

Configuring the Fixed Switch Stack 1.............................................................................................11-14

Configuring the Fixed Switch Stack 2.............................................................................................11-14

Configuring the Server....................................................................................................................11-15

Terms and Definitions .................................................................................................................................11-15

Chapter 12: Configuring SNMP

SNMP Overview ...........................................................................................................................................12-1

Implementing SNMP ..............................................................................................................................12-1

SNMP Concepts ...........................................................................................................................................12-2

Manager/Agent Model Components ......................................................................................................12-2

Message Functions ................................................................................................................................12-2

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Trap Versus Inform Messages .........................................................................................................12-3

Access to MIB Objects ...........................................................................................................................12-3

Community Name Strings.................................................................................................................12-3

User-Based.......................................................................................................................................12-3

SNMP Support on Enterasys Switches ........................................................................................................12-3

Versions Supported ................................................................................................................................12-4

SNMPv1 andv2c Network Management Components .....................................................................12-4

SNMPv3 User-Based Security Model (USM) Enhancements ..........................................................12-4

Terms and Definitions ............................................................................................................................12-5

Security Models and Levels ...................................................................................................................12-6

Access Control .......................................................................................................................................12-6

Configuring SNMP ........................................................................................................................................12-7

Configuration Basics ..............................................................................................................................12-7

How SNMP Processes a Notification Configuration ...............................................................................12-7

SNMP Defaults .......................................................................................................................................12-8

Device Start Up Configuration..........................................................................................................12-8

Configuring SNMPv1/SNMPv2c .............................................................................................................12-9

Creating a New Configuration ..........................................................................................................12-9

Adding to or Modifying the Default Configuration...........................................................................12-10

Configuring SNMPv3 ............................................................................................................................12-10

Configuring an SNMPv3 Inform or Trap Engine ID ........................................................................12-13

Configuring an SNMP View............................................................................................................12-14

Configuring Secure SNMP Community Names ...................................................................................12-15

Example..........................................................................................................................................12-17

Reviewing SNMP Settings ..........................................................................................................................12-18

Chapter 13: Configuring Neighbor Discovery

Neighbor Discovery Overview ......................................................................................................................13-1

Neighbor Discovery Operation ...............................................................................................................13-1

LLDP-MED .............................................................................................................................................13-3

LLDPDU Frames ....................................................................................................................................13-5

Configuring LLDP .........................................................................................................................................13-7

LLDP Configuration Commands ............................................................................................................13-7

Basic LLDP Configuration ......................................................................................................................13-9

Example LLDP Configuration: Time to Live......................................................................................13-9

Example LLDP Configuration: Location Information.........................................................................13-9

LLDP Display Commands ....................................................................................................................13-10

Configuring Enterasys Discovery Protocol .................................................................................................13-10

Enterasys Discovery Protocol Configuration Commands ....................................................................13-10

Example Enterasys Discovery Protocol Configuration .........................................................................13-11

Enterasys Discovery Protocol Show Commands .................................................................................13-11

Configuring Cisco Discovery Protocol ........................................................................................................13-11

Cisco Discovery Protocol Configuration Commands ...........................................................................13-12

Example Cisco Discovery Protocol Configuration ................................................................................13-12

Cisco Discovery Protocol Configuration Commands ...........................................................................13-12

Chapter 14: Configuring Syslog

System Logging Overview ............................................................................................................................14-1

Syslog Operation ..........................................................................................................................................14-2

Syslog Operation on Enterasys Devices ................................................................................................14-2

Filtering by Severity and Facility ............................................................................................................14-2

Syslog Components and Their Use ..............................................................................................................14-3

Basic Syslog Scenario ...........................................................................................................................14-5

Interpreting Messages ..................................................................................................................................14-6

Example .................................................................................................................................................14-6

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About Security Audit Logging .......................................................................................................................14-6

Security Events Logged .........................................................................................................................14-7

Trap Generation .....................................................................................................................................14-7

Format Examples ...................................................................................................................................14-8

Configuring Syslog .......................................................................................................................................14-8

Syslog Command Precedence ...............................................................................................................14-8

About Server and Application Severity Levels .......................................................................................14-9

Configuring Syslog Server(s) .................................................................................................................14-9

Example............................................................................................................................................14-9

Modifying Syslog Server Defaults ........................................................................................................14-10

Displaying System Logging Defaults..............................................................................................14-10

Modifying Default Settings..............................................................................................................14-10

Reviewing and Configuring Logging for Applications ...........................................................................14-10

Displaying Current Application Severity Levels..............................................................................14-11

Enabling Console Logging and File Storage ........................................................................................14-11

Displaying to the Console and Saving to a File..............................................................................14-11

Configuration Examples .......................................................................................................................14-12

Enabling a Server and Console Logging........................................................................................14-12

Adjusting Settings to Allow for Logging at the Debug Level...........................................................14-12

Chapter 15: Configuring Spanning Tree

Spanning Tree Protocol Overview ................................................................................................................15-1

Why Use Spanning Trees? ....................................................................................................................15-2

Spanning Tree on Enterasys Platforms .................................................................................................15-2

STP Operation ..............................................................................................................................................15-3

Rapid Spanning Tree Operation ............................................................................................................15-4

Multiple Spanning Tree Operation .........................................................................................................15-4

Functions and Features Supported on Enterasys Devices ..........................................................................15-6

Spanning Tree Versions .........................................................................................................................15-6

Maximum SID Capacities .......................................................................................................................15-6

Network Diameter ..................................................................................................................................15-6

Port Forwarding ......................................................................................................................................15-6

Disabling Spanning Tree ........................................................................................................................15-7

STP Features .........................................................................................................................................15-7

SpanGuard.......................................................................................................................................15-7

Loop Protect.....................................................................................................................................15-7

Updated 802.1t.................................................................................................................................15-8

Multisource Detection.......................................................................................................................15-8

Spanning Tree Basics ..................................................................................................................................15-9

Spanning Tree Bridge Protocol Data Units ............................................................................................15-9

Electing the Root Bridge ........................................................................................................................15-9

Assigning Path Costs .............................................................................................................................15-9

Paths to Root .......................................................................................................................................15-10

Identifying Designated, Alternate, and Backup Port Roles ..................................................................15-12

Assigning Port States ...........................................................................................................................15-13

RSTP Operation ...................................................................................................................................15-14

MSTP Operation ..................................................................................................................................15-14

Common and Internal Spanning Tree (CIST).................................................................................15-14

MST Region....................................................................................................................................15-15

Multiple Spanning Tree Instances (MSTI) ......................................................................................15-16

Configuring STP and RSTP ........................................................................................................................15-19

Reviewing and Enabling Spanning Tree ..............................................................................................15-20

Example..........................................................................................................................................15-20

Adjusting Spanning Tree Parameters ..................................................................................................15-20

Setting Bridge Priority Mode and Priority........................................................................................15-21

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Setting a Port Priority......................................................................................................................15-21

Assigning Port Costs ......................................................................................................................15-22

Adjusting Bridge Protocol Data Unit (BPDU) Intervals ...................................................................15-22

Enabling the Backup Root Function .....................................................................................................15-23

Adjusting RSTP Parameters ................................................................................................................15-23

Defining Edge Port Status ..............................................................................................................15-24

Configuring MSTP ......................................................................................................................................15-24

Example 1: Configuring MSTP for Traffic Segregation ........................................................................15-25

Example 2: Configuring MSTP for Maximum Bandwidth Utilization .....................................................15-27

Adjusting MSTP Parameters ................................................................................................................15-28

Monitoring MSTP .................................................................................................................................15-29

Understanding and Configuring SpanGuard ..............................................................................................15-29

What Is SpanGuard? ............................................................................................................................15-29

How Does It Operate? ..........................................................................................................................15-30

Configuring SpanGuard .......................................................................................................................15-30

Reviewing and Setting Edge Port Status........................................................................................15-30

Enabling and Adjusting SpanGuard ...............................................................................................15-30

Monitoring SpanGuard Status and Settings...................................................................................15-31

Understanding and Configuring Loop Protect ............................................................................................15-31

What Is Loop Protect? ..........................................................................................................................15-31

How Does It Operate? ..........................................................................................................................15-31

Port Modes and Event Triggers......................................................................................................15-32

Example: Basic Loop Protect Configuration...................................................................................15-32

..................................................................................................................... Configuring Loop Protect 15-33

Enabling or Disabling Loop Protect ................................................................................................15-34

Specifying Loop Protect Partners...................................................................................................15-34

Setting the Loop Protect Event Threshold and Window.................................................................15-34

Enabling or Disabling Loop Protect Event Notifications .................................................................15-35

Setting the Disputed BPDU Threshold...........................................................................................15-35

Monitoring Loop Protect Status and Settings.................................................................................15-35

Terms and Definitions .................................................................................................................................15-36

Chapter 16: Configuring Policy

Using Policy in Your Network .......................................................................................................................16-1

Standard and Enhanced Policy on Enterasys Platforms ........................................................................16-2

Implementing Policy ...............................................................................................................................16-2

Policy Configuration Overview ......................................................................................................................16-2

Using the Enterasys NetSight Policy Manager ......................................................................................16-2

Understanding Roles in a Secure Network ............................................................................................16-3

The Policy Role ................................................................................................................................16-3

Defining Policy Roles .............................................................................................................................16-3

Setting a Default VLAN for a Role....................................................................................................16-4

Adding Tagged, Untagged, and Forbidden Ports to the VLAN Egress Lists....................................16-4

Assigning a Class of Service to a Role.............................................................................................16-4

Defining Policy Rules .............................................................................................................................16-5

Admin Rules.....................................................................................................................................16-5

Traffic Classification Rules ...............................................................................................................16-5

Applying Policy .......................................................................................................................................16-7

Applying a Default Policy..................................................................................................................16-8

Applying Policies Dynamically..........................................................................................................16-8

Blocking Non-Edge Protocols at the Edge Network Layer ...............................................................16-8

Configuring Policy .........................................................................................................................................16-9

Policy Configuration Example .....................................................................................................................16-12

Roles ....................................................................................................................................................16-13

Policy Domains ....................................................................................................................................16-13

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Basic Edge .....................................................................................................................................16-13

Standard Edge................................................................................................................................16-14

Premium Edge................................................................................................................................16-14

Premium Distribution ......................................................................................................................16-14

Platform Configuration .........................................................................................................................16-14

Configuring Guest Policy on Edge Platforms .................................................................................16-15

Configuring Policy for the Edge Student Fixed Switch ...................................................................16-15

Configuring PhoneFS Policy for the Edge Fixed Switch.................................................................16-16

Configuring Policy for the Edge Faculty Fixed Switch....................................................................16-17

Terms and Definitions .................................................................................................................................16-18

Chapter 17: Configuring Quality of Service

Quality of Service Overview .........................................................................................................................17-1

Implementing QoS .................................................................................................................................17-1

Quality of Service Operation ..................................................................................................................17-2

Class of Service (CoS) ...........................................................................................................................17-2

CoS Settings ..........................................................................................................................................17-3

CoS Hardware Resource Reference................................................................................................17-3

CoS Flood Control State...................................................................................................................17-3

CoS Priority and ToS Rewrite...........................................................................................................17-3

CoS Reference .......................................................................................................................................17-4

Port Group and Type........................................................................................................................17-4

CoS Settings Reference to Port Resource Mapping ........................................................................17-5

Port Resources ......................................................................................................................................17-5

Port Configuration ..................................................................................................................................17-5

Preferential Queue Treatment for Packet Forwarding ...........................................................................17-6

Strict Priority Queuing.......................................................................................................................17-6

Weighted Fair Queuing.....................................................................................................................17-6

Hybrid Queuing.................................................................................................................................17-7

Rate Limiting ..........................................................................................................................................17-8

Flood Control ..........................................................................................................................................17-9

CoS Hardware Resource Configuration .......................................................................................................17-9

IRL Configuration ...................................................................................................................................17-9

CoS Port Configuration Layer...........................................................................................................17-9

CoS Port Resource Layer...............................................................................................................17-10

CoS Reference Layer.....................................................................................................................17-10

CoS Settings Layer.........................................................................................................................17-10

Enable CoS State...........................................................................................................................17-10

IRL Configuration Example Show Command Output .....................................................................17-10

Flood Control Configuration .................................................................................................................17-12

CoS Port Configuration Layer.........................................................................................................17-12

CoS Port Resource Layer...............................................................................................................17-12

CoS Reference Layer.....................................................................................................................17-12

CoS Settings Layer.........................................................................................................................17-12

Enable CoS State...........................................................................................................................17-12

Flood Control Configuration Example Show Command Output .....................................................17-12

Enabling CoS State ..............................................................................................................................17-13

The QoS CLI Command Flow ....................................................................................................................17-14

Port Priority and Transmit Queue Configuration .........................................................................................17-15

Setting Port Priority ..............................................................................................................................17-15

Example..........................................................................................................................................17-15

Mapping Port Priority to Transmit Queues ...........................................................................................17-15

Example..........................................................................................................................................17-16

Setting Transmit Queue Arbitration ......................................................................................................17-16

Port Traffic Rate Limiting ............................................................................................................................17-17

xiv

Examples .............................................................................................................................................17-18

Chapter 18: Configuring Network Monitoring

Basic Network Monitoring Features ..............................................................................................................18-1

Console/Telnet History Buffer ................................................................................................................18-1

Network Diagnostics ..............................................................................................................................18-2

Switch Connection Statistics ..................................................................................................................18-2

Users ......................................................................................................................................................18-3

RMON ...........................................................................................................................................................18-3

RMON Design Considerations ...............................................................................................................18-4

Configuring RMON .................................................................................................................................18-5

sFlow ............................................................................................................................................................18-9

Using sFlow in Your Network ...............................................................................................................18-10

Definitions ............................................................................................................................................18-10

sFlow Agent Functionality ....................................................................................................................18-11

Sampling Mechanisms .........................................................................................................................18-11

Packet Flow Sampling....................................................................................................................18-11

Counter Sampling...........................................................................................................................18-11

Sampling Implementation Notes.....................................................................................................18-12

Configuring sFlow ................................................................................................................................18-12

Overview.........................................................................................................................................18-12

Procedure.......................................................................................................................................18-14

Chapter 19: Configuring Multicast

Using Multicast in Your Network ...................................................................................................................19-1

Implementing Multicast ..........................................................................................................................19-1

Multicast Operation ................................................................................................................................19-2

Internet Group Management Protocol (IGMP) .......................................................................................19-2

Overview...........................................................................................................................................19-2

IGMP Support on Enterasys Devices...............................................................................................19-3

Example: Sending a Multicast Stream..............................................................................................19-4

Distance Vector Multicast Routing Protocol (DVMRP) ...........................................................................19-5

Overview...........................................................................................................................................19-5

DVMRP Support on Enterasys Devices ...........................................................................................19-5

Protocol Independent Multicast (PIM) ..................................................................................................19-11

Overview.........................................................................................................................................19-11

PIM Support on Enterasys Devices................................................................................................19-13

PIM Terms and Definitions.............................................................................................................19-14

Configuring IGMP .......................................................................................................................................19-15

Basic IGMP Configuration ....................................................................................................................19-17

Example IGMP Configuration on Layer 3.......................................................................................19-17

IGMP Display Commands ....................................................................................................................19-18

Configuring DVMRP ...................................................................................................................................19-18

DVMRP Configuration Commands ......................................................................................................19-18

Basic DVMRP Configuration ................................................................................................................19-19

Example DVMRP Configuration .....................................................................................................19-19

Displaying DVMRP Information ............................................................................................................19-20

Configuring PIM-SM ...................................................................................................................................19-21

Design Considerations .........................................................................................................................19-21

PIM-SM Configuration Commands ......................................................................................................19-21

Basic PIM-SM Configuration ................................................................................................................19-22

Example Configuration ...................................................................................................................19-22

PIM-SM Display Commands ................................................................................................................19-24

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Chapter 20: IP Configuration

Enabling the Switch for Routing ...................................................................................................................20-1

Router Configuration Modes ..................................................................................................................20-1

Entering Router Configuration Modes ....................................................................................................20-2

Example .................................................................................................................................................20-3

Routing Interfaces ........................................................................................................................................20-3

IPv4 Interface Addresses .......................................................................................................................20-3

IP Static Routes ............................................................................................................................................20-4

Configuring Static Routes ......................................................................................................................20-5

Testing Network Connectivity .......................................................................................................................20-5

The ARP Table .............................................................................................................................................20-6

Proxy ARP ..............................................................................................................................................20-7

ARP Configuration .................................................................................................................................20-7

IP Broadcast Settings ...................................................................................................................................20-7

Directed Broadcast .................................................................................................................................20-7

UDP Broadcast Forwarding ...................................................................................................................20-8

DHCP and BOOTP Relay ......................................................................................................................20-9

IP Broadcast Configuration ....................................................................................................................20-9

Configuring ICMP Redirects .......................................................................................................................20-10

Terms and Definitions .................................................................................................................................20-10

Chapter 21: IPv4 Basic Routing Protocols

Configuring RIP ............................................................................................................................................21-1

Using RIP in Your Network ....................................................................................................................21-1

RIP Configuration Overview ...................................................................................................................21-1

RIP Router Configuration .................................................................................................................21-1

RIP Interface Configuration ..............................................................................................................21-2

RIP Configuration Example ....................................................................................................................21-3

Configuring IRDP ..........................................................................................................................................21-5

Using IRDP in Your Network ..................................................................................................................21-5

IRDP Configuration Overview ................................................................................................................21-5

IRDP Configuration Example .................................................................................................................21-5

Chapter 22: Configuring OSPFv2

OSPF Overview ............................................................................................................................................22-1

OSPF Areas ...........................................................................................................................................22-2

OSPF Router Types ...............................................................................................................................22-3

Designated Router .................................................................................................................................22-3

Authentication ........................................................................................................................................22-3

Basic OSPF Topology Configuration ............................................................................................................22-3

Configuring the Router ID ......................................................................................................................22-4

Configuring the Designated Router ........................................................................................................22-5

Configuring Router Priority ...............................................................................................................22-6

Example............................................................................................................................................22-6

Configuring the Administrative Distance for OSPF Routes ....................................................................22-7

Configuring SPF Timers .........................................................................................................................22-7

Configuring OSPF Areas ..............................................................................................................................22-8

Configuring Area Range .........................................................................................................................22-8

Example............................................................................................................................................22-8

Configuring a Stub Area .........................................................................................................................22-9

Stub Area Default Route Cost ........................................................................................................22-10

Example..........................................................................................................................................22-10

Configuring a Not So Stubby Area (NSSA) ..........................................................................................22-11

Example..........................................................................................................................................22-12

Configuring Area Virtual-Links .............................................................................................................22-12

xvi

Configuring Area Virtual-Link Authentication..................................................................................22-14

Configuring Area Virtual-Link Timers..............................................................................................22-14

Configuring Route Redistribution .........................................................................................................22-14

Configuring Passive Interfaces ............................................................................................................22-14

Configuring OSPF Interfaces ......................................................................................................................22-15

Configuring Interface Cost ...................................................................................................................22-15

Configuring Interface Priority ................................................................................................................22-15

Configuring Authentication ...................................................................................................................22-15

Configuring OSPF Interface Timers .....................................................................................................22-16

Default Settings ..........................................................................................................................................22-16

Configuration Procedures ...........................................................................................................................22-17

Basic OSPF Router Configuration .......................................................................................................22-17

OSPF Interface Configuration ..............................................................................................................22-18

OSPF Area Configuration ....................................................................................................................22-18

Managing and Displaying OSPF Configuration and Statistics .............................................................22-19

Chapter 23: Configuring VRRP

VRRP Overview ............................................................................................................................................23-1

VRRP Virtual Router Creation ................................................................................................................23-2

VRRP Master Election ...........................................................................................................................23-2

Enabling Master Preemption ..................................................................................................................23-3

Enabling ICMP Replies ..........................................................................................................................23-3

Configuring VRRP Authentication ..........................................................................................................23-3

Enabling the VRRP Virtual Router .........................................................................................................23-3

Configuring VRRP ........................................................................................................................................23-3

Configuration Examples .........................................................................................................................23-4

Basic VRRP Configuration ...............................................................................................................23-4

Multiple Backup VRRP Configuration...............................................................................................23-6

Terms and Definitions ...................................................................................................................................23-8

Chapter 24: Configuring Access Control Lists

Using Access Control Lists (ACLs) in Your Network ....................................................................................24-1

Implementing ACLs ......................................................................................................................................24-1

ACL Configuration Overview ........................................................................................................................24-2

Creating IPv4 ACLs ................................................................................................................................24-2

Creating IPv6 and MAC ACLs ................................................................................................................24-2

Creating ACL Rules ...............................................................................................................................24-3

IPv4 Rules ........................................................................................................................................24-3

IPv6 Rules ........................................................................................................................................24-4

MAC Rules .......................................................................................................................................24-4

Managing ACLs ......................................................................................................................................24-4

Deleting ACLs and Rules .................................................................................................................24-4

Moving ACL Rules............................................................................................................................24-5

Replacing ACL Rules .......................................................................................................................24-5

Inserting ACL Rules..........................................................................................................................24-6

Applying ACLs ........................................................................................................................................24-6

Configuring ACLs .........................................................................................................................................24-7

Configuring IPv4 ACLs ...........................................................................................................................24-7

Example............................................................................................................................................24-8

Configuring IPv6 ACLs ...........................................................................................................................24-8

Example............................................................................................................................................24-9

Configuring MAC ACLs ........................................................................................................................24-10

Example..........................................................................................................................................24-10

Access Control Lists on the A4 ...................................................................................................................24-11

Configuring A4 ACLs ............................................................................................................................24-12

xvii

Extended IPv4 ACL Configuration..................................................................................................24-12

MAC ACL Configuration .................................................................................................................24-13

Chapter 25: Configuring and Managing IPv6

Managing IPv6 ..............................................................................................................................................25-1

Configuring IPv6 Management ...............................................................................................................25-2

Example............................................................................................................................................25-2

Monitoring Network Connections ...........................................................................................................25-3

IPv6 Routing Configuration ...........................................................................................................................25-3

Overview ................................................................................................................................................25-3

Defaults ..................................................................................................................................................25-4

Setting Routing General Parameters .....................................................................................................25-5

Configuring Routing Interfaces ...............................................................................................................25-5

IPv6 Addressing ...............................................................................................................................25-5

Enabling an Interface for IPv6 Routing.............................................................................................25-6

Configuration Examples ...................................................................................................................25-6

Creating Tunnel Interfaces .....................................................................................................................25-7

Configuring Static Routes ......................................................................................................................25-9

Viewing Routing Information ................................................................................................................25-10

Testing Network Connectivity ...............................................................................................................25-11

IPv6 Neighbor Discovery ............................................................................................................................25-11

Duplicate Address Detection ................................................................................................................25-11

Neighbor Solicitation Messages ...........................................................................................................25-12

Router Advertisements .........................................................................................................................25-12

Cache Management .............................................................................................................................25-12

Neighbor Discovery Configuration .......................................................................................................25-13

DHCPv6 Configuration ...............................................................................................................................25-14

DHCPv6 Relay Agent Configuration ....................................................................................................25-14

DHCPv6 Server Configuration .............................................................................................................25-15

Pool Configuration..........................................................................................................................25-15

Server Configuration.......................................................................................................................25-15

Default Conditions ................................................................................................................................25-16

Configuration Examples .......................................................................................................................25-16

Viewing DHCPv6 Statistics ..................................................................................................................25-18

Chapter 26: Configuring Security Features

Security Mode Configuration ........................................................................................................................26-1

About the Security Mode ........................................................................................................................26-1

Configuring the Security Mode .........................................................................................................26-2

Security Mode and SNMP ......................................................................................................................26-2

Security Mode and User Authentication and Passwords .......................................................................26-3

Security Mode and System Logging ......................................................................................................26-3

Security Mode and File Management ....................................................................................................26-4

IPsec Configuration ......................................................................................................................................26-4

About IPsec ............................................................................................................................................26-4

IPsec Defaults ........................................................................................................................................26-5

IPsec Configuration ................................................................................................................................26-5

RADIUS Management Authentication ..........................................................................................................26-6

Request Transmission ...........................................................................................................................26-6

Response Validation ..............................................................................................................................26-7

Password Changing ...............................................................................................................................26-7

Example .................................................................................................................................................26-7

MAC Locking ................................................................................................................................................26-7

First Arrival Configuration .......................................................................................................................26-8

MAC Locking Notifications .....................................................................................................................26-8

xviii

Disabling and Enabling Ports .................................................................................................................26-9

MAC Locking Defaults ............................................................................................................................26-9

MAC Locking Configuration .................................................................................................................26-10

TACACS+ ...................................................................................................................................................26-11

TACACS+ Client Functionality .............................................................................................................26-12

Session Authorization and Accounting...........................................................................................26-12

Command Authorization and Accounting .......................................................................................26-12

Configuring the Source Address.....................................................................................................26-13

Default Settings ....................................................................................................................................26-13

Basic TACACS+ Configuration ............................................................................................................26-14

Example TACACS+ Configuration .......................................................................................................26-15

TACACS+ Display Commands ............................................................................................................26-15

Service ACLs ..............................................................................................................................................26-16

Restricting Management Access to the Console Port ..........................................................................26-17

Configuring a Service Access Control List ...........................................................................................26-17

DHCP Snooping ........................................................................................................................................26-18

DHCP Message Processing .................................................................................................................26-18

Building and Maintaining the Database ................................................................................................26-19

Rate Limiting ........................................................................................................................................26-19

Basic Configuration ..............................................................................................................................26-19

Configuration Notes........................................................................................................................26-20

Default Parameter Values ..............................................................................................................26-20

Managing DHCP Snooping ..................................................................................................................26-21

Dynamic ARP Inspection ...........................................................................................................................26-22

Functional Description ..........................................................................................................................26-22

Static Mappings..............................................................................................................................26-22

Optional ARP Packet Validation.....................................................................................................26-22

Logging Invalid Packets..................................................................................................................26-23

Packet Forwarding..........................................................................................................................26-23

Rate Limiting...................................................................................................................................26-23

Eligible Interfaces ...........................................................................................................................26-23

Interaction with Other Functions.....................................................................................................26-23

Basic Configuration ..............................................................................................................................26-24

Default Parameter Values ..............................................................................................................26-24

Managing Dynamic ARP Inspection .....................................................................................................26-24

Example Configuration .........................................................................................................................26-25

Non-Routing Example ....................................................................................................................26-25

Routing Example ............................................................................................................................26-26

Figures

3-1 CLI Startup Screen.............................................................................................................................3-2

3-2 Sample CLI Defaults Description........................................................................................................3-4

3-3 Performing a Keyword Lookup ...........................................................................................................3-4

3-4 Performing a Partial Keyword Lookup................................................................................................3-4

3-5 Scrolling Screen Output......................................................................................................................3-5

3-6 Abbreviating a Command...................................................................................................................3-5

9-1 VLAN Business Scenario ...................................................................................................................9-2

9-2 Inside the Switch ................................................................................................................................9-5

9-3 Example of VLAN Propagation Using GVRP .....................................................................................9-8

10-1 Applying Policy to Multiple Users on a Single Port...........................................................................10-5

10-2 Authenticating Multiple Users With Different Methods on a Single Port...........................................10-6

10-3 Selecting Authentication Method When Multiple Methods are Validated .........................................10-7

10-4 Stackable Fixed Switch Authentication Configuration Example Overview .....................................10-25

11-1 LAG Formation .................................................................................................................................11-4

11-2 LAGs Moved to Attached State ........................................................................................................11-6

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