Alcatel-Lucent OmniSwitch AOS 7 User manual

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 i

Part No. 060319-10, Rev. B

March 2011

OmniSwitch AOS Release 7

Network Configuration Guide

www.alcatel-lucent.com

ii OmniSwitch AOS Release 7 Network Configuration Guide March 2011

This user guide documents release 7.1.1 of the OmniSwitch 10K.

The functionality described in this guide is subject to change without notice.

or in part without the express written permission of Alcatel-Lucent.

Alcatel-Lucent

®

and the Alcatel-Lucent logo are registered trademarks of Alcatel-Lucent. Xylan

®

,

OmniSwitch

®

, OmniStack

®

, and Alcatel-Lucent OmniVista

®

are registered trademarks of Alcatel-Lucent.

OmniAccess™, Omni Switch/Router™, PolicyView™, RouterView™, SwitchManager™, VoiceView™,

WebView™, X-Cell™, X-Vision™, and the Xylan logo are trademarks of Alcatel-Lucent.

This OmniSwitch product contains components which may be covered by one or more of the following

U.S. Patents:

•U.S. Patent No. 6,339,830

•U.S. Patent No. 6,070,243

•U.S. Patent No. 6,061,368

•U.S. Patent No. 5,394,402

•U.S. Patent No. 6,047,024

•U.S. Patent No. 6,314,106

•U.S. Patent No. 6,542,507

•U.S. Patent No. 6,874,090

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OmniSwitch AOS Release 7 Network Configuration Guide March 2011 1

Contents

About This Guide ........................................................................................................xxi

Supported Platforms ........................................................................................................xxi

Who Should Read this Manual? ......................................................................................xxi

When Should I Read this Manual? ..................................................................................xxi

What is in this Manual? ..................................................................................................xxii

What is Not in this Manual? ...........................................................................................xxii

How is the Information Organized? ...............................................................................xxii

Documentation Roadmap ..............................................................................................xxiii

Related Documentation ..................................................................................................xxv

Technical Support .........................................................................................................xxvi

Chapter 1 Configuring Ethernet Ports ......................................................................................1-1

In This Chapter ................................................................................................................1-1

Ethernet Specifications ....................................................................................................1-2

Ethernet Port Defaults .....................................................................................................1-2

Ethernet Ports Overview .................................................................................................1-3

Valid Port Settings ...................................................................................................1-3

Configuring Ethernet Port Parameters ............................................................................1-3

Enabling and Disabling Autonegotiation .................................................................1-3

Configuring Crossover Settings ...............................................................................1-3

Setting Interface Line Speed ....................................................................................1-4

Configuring Duplex Mode .......................................................................................1-4

Setting Trap Port Link Messages .............................................................................1-4

Resetting Statistics Counters ....................................................................................1-4

Enabling and Disabling Interfaces ...........................................................................1-5

Configuring a Port Alias ..........................................................................................1-5

Configuring Maximum Frame Sizes ........................................................................1-5

Configuring Digital Diagnostic Monitoring (DDM) ................................................1-5

Configuring Flood Rate Limiting .............................................................................1-6

Configuring Flow Control ........................................................................................1-6

Chapter 2 Configuring UDLD ......................................................................................................2-1

In This Chapter ................................................................................................................2-1

UDLD Specifications ......................................................................................................2-2

UDLD Defaults ..............................................................................................................2-2

Quick Steps for Configuring UDLD ...............................................................................2-3

Contents

2 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

UDLD Overview .............................................................................................................2-4

UDLD Operational Mode .........................................................................................2-4

Mechanisms to Detect Unidirectional Links ............................................................2-5

Configuring UDLD .........................................................................................................2-6

Enabling and Disabling UDLD ................................................................................2-6

Configuring the Operational Mode ..........................................................................2-7

Configuring the Probe-Timer ...................................................................................2-7

Configuring the Echo-Wait-Timer ...........................................................................2-7

Clearing UDLD Statistics .........................................................................................2-8

Verifying the UDLD Configuration ................................................................................2-8

Chapter 3 Managing Source Learning ...................................................................................3-1

In This Chapter ................................................................................................................3-1

Source Learning Specifications .......................................................................................3-2

Source Learning Defaults ...............................................................................................3-2

MAC Address Table Overview .......................................................................................3-3

Using Static MAC Addresses ..........................................................................................3-3

Configuring Static MAC Addresses .........................................................................3-4

Using Static Multicast MAC Addresses .........................................................................3-5

Configuring Static Multicast MAC Addresses .........................................................3-5

Configuring MAC Address Table Aging Time ..............................................................3-7

Configuring the Source Learning Status .........................................................................3-8

Increasing the MAC Address Table Size ........................................................................3-9

Displaying Source Learning Information ......................................................................3-10

Chapter 4 Configuring VLANs ....................................................................................................4-1

In This Chapter ................................................................................................................4-1

VLAN Specifications ......................................................................................................4-2

VLAN Defaults ..............................................................................................................4-2

Sample VLAN Configuration .........................................................................................4-3

VLAN Management Overview .......................................................................................4-4

Creating/Modifying VLANs ...........................................................................................4-4

Adding/Removing a VLAN .....................................................................................4-5

Enabling/Disabling the VLAN Administrative Status .............................................4-6

Modifying the VLAN Description ...........................................................................4-6

Assigning Ports to VLANs ..............................................................................................4-6

Changing the Default VLAN Assignment for a Port ...............................................4-7

Using 802.1Q Tagging .............................................................................................4-7

Enabling/Disabling Spanning Tree for a VLAN .............................................................4-9

Enabling/Disabling Source Learning ..............................................................................4-9

Configuring VLAN Router Interfaces ..........................................................................4-10

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 3

Bridging VLANs Across Multiple Switches .................................................................4-11

Verifying the VLAN Configuration ..............................................................................4-13

Understanding Port Output .....................................................................................4-13

Chapter 5 Configuring Spanning Tree Parameters .............................................................5-1

In This Chapter ................................................................................................................5-2

Spanning Tree Specifications ..........................................................................................5-3

Spanning Tree Bridge Parameter Defaults .....................................................................5-4

Spanning Tree Port Parameter Defaults ..........................................................................5-4

Multiple Spanning Tree (MST) Region Defaults ............................................................5-5

Spanning Tree Overview .................................................................................................5-6

How the Spanning Tree Topology is Calculated .....................................................5-6

MST General Overview ................................................................................................5-12

How MSTP Works .................................................................................................5-12

Comparing MSTP with STP and RSTP .................................................................5-15

What is a Multiple Spanning Tree Instance (MSTI) ..............................................5-15

What is a Multiple Spanning Tree Region .............................................................5-16

What is the Common Spanning Tree .....................................................................5-17

What is the Internal Spanning Tree (IST) Instance ................................................5-17

What is the Common and Internal Spanning Tree Instance ...................................5-17

MST Configuration Overview ...............................................................................5-17

MST Interoperability and Migration ......................................................................5-18

Spanning Tree Operating Modes ..................................................................................5-20

Using Flat Spanning Tree Mode ............................................................................5-20

Using Per-VLAN Spanning Tree Mode .................................................................5-21

Using Per-VLAN Spanning Tree Mode with PVST+ ............................................5-22

OmniSwitch PVST+ Interoperability .....................................................................5-23

Using Spanning Tree Configuration Commands ..........................................................5-25

Configuring STP Bridge Parameters .............................................................................5-26

Selecting the Spantree Protocol ..............................................................................5-27

Configuring the Bridge Priority .............................................................................5-27

Configuring the Bridge Hello Time .......................................................................5-28

Configuring the Bridge Max-Age Time .................................................................5-29

Configuring the Forward Delay Time for the Switch ............................................5-29

Enabling/Disabling the VLAN BPDU Switching Status .......................................5-30

Configuring the Path Cost Mode ............................................................................5-31

Using Automatic VLAN Containment ...................................................................5-31

Configuring STP Port Parameters .................................................................................5-33

Enabling/Disabling Spanning Tree on a Port .........................................................5-34

Configuring Port Priority .......................................................................................5-36

Configuring Port Path Cost ....................................................................................5-37

Configuring Port Mode ..........................................................................................5-40

Configuring Port Connection Type ........................................................................5-41

Configuring the Edge Port Status ...........................................................................5-42

Restricting Port Roles (Root Guard) ......................................................................5-43

Restricting TCN Propagation .................................................................................5-43

Contents

4 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Limiting BPDU Transmission ................................................................................5-43

Sample Spanning Tree Configuration ...........................................................................5-44

Example Network Overview ..................................................................................5-44

Example Network Configuration Steps ..................................................................5-45

Sample MST Region Configuration ..............................................................................5-47

Sample MSTI Configuration .........................................................................................5-49

Verifying the Spanning Tree Configuration .................................................................5-52

Chapter 6 Configuring Static Link Aggregation ....................................................................6-1

In This Chapter ................................................................................................................6-1

Static Link Aggregation Specifications ..........................................................................6-2

Static Link Aggregation Default Values .........................................................................6-2

Quick Steps for Configuring Static Link Aggregation ...................................................6-3

Static Link Aggregation Overview .................................................................................6-5

Static Link Aggregation Operation ..........................................................................6-5

Relationship to Other Features .................................................................................6-6

Configuring Static Link Aggregation Groups .................................................................6-6

Configuring Mandatory Static Link Aggregate Parameters .....................................6-6

Creating and Deleting a Static Link Aggregate Group ............................................6-7

Adding and Deleting Ports in a Static Aggregate Group .........................................6-8

Modifying Static Aggregation Group Parameters ...........................................................6-9

Modifying the Static Aggregate Group Name .........................................................6-9

Modifying the Static Aggregate Group Administrative State ..................................6-9

Application Example .....................................................................................................6-10

Displaying Static Link Aggregation Configuration and Statistics ................................6-11

Chapter 7 Configuring Dynamic Link Aggregation ..............................................................7-1

In This Chapter ................................................................................................................7-1

Dynamic Link Aggregation Specifications .....................................................................7-2

Dynamic Link Aggregation Default Values ...................................................................7-3

Quick Steps for Configuring Dynamic Link Aggregation ..............................................7-4

Dynamic Link Aggregation Overview ............................................................................7-6

Dynamic Link Aggregation Operation .....................................................................7-6

Relationship to Other Features .................................................................................7-8

Configuring Dynamic Link Aggregate Groups ...............................................................7-8

Configuring Mandatory Dynamic Link Aggregate Parameters ...............................7-9

Creating and Deleting a Dynamic Aggregate Group ...............................................7-9

Configuring Ports to Join and Removing Ports in a Dynamic Aggregate Group ..7-10

Modifying Dynamic Link Aggregate Group Parameters ..............................................7-12

Modifying Dynamic Aggregate Group Parameters ...............................................7-12

Modifying Dynamic Link Aggregate Actor Port Parameters ................................7-17

Modifying Dynamic Aggregate Partner Port Parameters ......................................7-21

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 5

Application Examples ...................................................................................................7-27

Sample Network Overview ....................................................................................7-27

Link Aggregation and Spanning Tree Example .....................................................7-28

Link Aggregation and QoS Example .....................................................................7-29

Displaying Dynamic Link Aggregation Configuration and Statistics ..........................7-30

Chapter 8 Configuring Multi-chassis Link Aggregation .....................................................8-1

In This Chapter ................................................................................................................8-2

Multi-chassis Link Aggregation Specifications ..............................................................8-3

Multi-chassis Link Aggregation Default Values .............................................................8-4

Quick Steps for Configuring MC-LAG ..........................................................................8-5

MC-LAG Overview ........................................................................................................8-9

MC-LAG Concepts and Components ......................................................................8-9

Benefits of MC-LAG .............................................................................................8-10

MC-LAG Principle .................................................................................................8-11

MC-LAG Loop Detection ......................................................................................8-12

MC-LAG Topologies ....................................................................................................8-13

Basic MC-LAG Building Block .............................................................................8-13

Recommended Topologies .....................................................................................8-13

Topologies Not Recommended ..............................................................................8-15

Unsupported Topologies ........................................................................................8-15

MC-LAG Packet Flow ..................................................................................................8-18

Layer 2 Switching over MC-LAG .........................................................................8-18

Interaction with Other Features .....................................................................................8-21

Spanning Tree Protocol ..........................................................................................8-21

Ethernet Ring Protection ........................................................................................8-21

Link Aggregation ...................................................................................................8-21

Multicast .................................................................................................................8-21

Source Learning .....................................................................................................8-21

IPv4 ........................................................................................................................8-21

Configuring MC-LAG ..................................................................................................8-22

MC-LAG Configuration Guidelines ......................................................................8-22

Configuring the Chassis-ID ....................................................................................8-24

Configuring the IPC-VLAN ...................................................................................8-24

Configuring the Hello-Interval ...............................................................................8-24

Configuring Aggregate Identifier Ranges ..............................................................8-24

Creating the Virtual Fabric Link (VFL) .................................................................8-25

Configuring MC-LAG Aggregates ........................................................................8-25

Configuring the VIP VLAN ...................................................................................8-25

Recommended Configuration Parameters .....................................................................8-26

Verifying Parameter Consistency ...........................................................................8-26

MC-LAG Configuration Example ................................................................................8-28

Displaying MC-LAG Configuration and Statistics .......................................................8-30

Contents

6 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Chapter 9 Configuring ERP ..........................................................................................................9-1

In This Chapter ................................................................................................................9-1

ERP Specifications ..........................................................................................................9-2

ERP Defaults ..................................................................................................................9-2

ERP Overview .................................................................................................................9-3

How Does ERP Work? .............................................................................................9-4

ERP and RRSTP Differences ...................................................................................9-7

Interaction With Other Features ......................................................................................9-8

Quick Steps for Configuring ERP with Standard VLANs ..............................................9-9

Quick Steps for Configuring ERP with VLAN Stacking ..............................................9-10

ERP Configuration Overview and Guidelines ..............................................................9-11

Configuring an ERP Ring .............................................................................................9-12

Adding VLANs to Ring Ports ................................................................................9-12

Configuring an RPL Port ........................................................................................9-13

Setting the Wait-to-Restore Timer .........................................................................9-13

Setting the Guard Timer .........................................................................................9-14

Configuring ERP with VLAN Stacking NNIs .......................................................9-14

Clearing ERP Statistics ..........................................................................................9-16

Sample Ethernet Ring Protection Configuration ...........................................................9-17

Example ERP Overview .........................................................................................9-17

Example ERP Configuration Steps ........................................................................9-18

Verifying the ERP Configuration ..................................................................................9-19

Chapter 10 Configuring 802.1AB ...............................................................................................10-1

In This Chapter ..............................................................................................................10-1

802.1AB Specifications .................................................................................................10-2

802.1AB Defaults Table. ...............................................................................................10-2

Quick Steps for Configuring 802.1AB ..........................................................................10-2

Quick Steps for Configuring LLDP-MED Network Policy ..........................................10-4

LLDP-MED Network Policy for Fixed Ports ........................................................10-4

802.1AB Overview .......................................................................................................10-5

Mandatory TLVs ....................................................................................................10-5

Optional TLVs ........................................................................................................10-6

LLDP-Media Endpoint Devices .............................................................................10-7

LLDP Agent Operation ..........................................................................................10-9

LLDPDU Transmission and Reception ..................................................................10-9

Aging Time ............................................................................................................10-9

Configuring 802.1AB ..................................................................................................10-10

Configuring LLDPDU Flow ................................................................................10-10

Enabling and Disabling Notification ....................................................................10-10

Enabling and Disabling Management TLV .........................................................10-10

Enabling and Disabling 802.1 TLV .....................................................................10-11

Enabling and Disabling 802.3 TLV .....................................................................10-11

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 7

Enabling and Disabling MED TLV .....................................................................10-12

Setting the Transmit Interval ................................................................................10-12

Setting the Transmit Hold Multiplier Value ........................................................10-12

Setting the Transmit Delay ...................................................................................10-12

Setting the Transmit Fast Start Count ..................................................................10-13

Setting the Reinit Delay .......................................................................................10-13

Setting the Notification Interval ...........................................................................10-13

Verifying 802.1AB Configuration ..............................................................................10-14

Chapter 11 Configuring IP ...........................................................................................................11-1

In This Chapter ..............................................................................................................11-1

IP Specifications ............................................................................................................11-3

IP Defaults .....................................................................................................................11-3

Quick Steps for Configuring IP Forwarding .................................................................11-4

IP Overview ..................................................................................................................11-5

IP Protocols ............................................................................................................11-5

IP Forwarding ................................................................................................................11-7

Configuring an IP Router Interface ........................................................................11-7

Configuring a Loopback0 Interface .....................................................................11-10

Creating a Static Route or Recursive Static Route ...............................................11-11

Creating a Default Route ......................................................................................11-12

Configuring Address Resolution Protocol (ARP) ................................................11-12

IP Configuration ..........................................................................................................11-16

Configuring the Router Primary Address .............................................................11-16

Configuring the Router ID ...................................................................................11-16

Configuring the Route Preference of a Router .....................................................11-16

Configuring the Time-to-Live (TTL) Value ........................................................11-17

Configuring Route Map Redistribution ................................................................11-17

IP-Directed Broadcasts .........................................................................................11-23

Denial of Service (DoS) Filtering ........................................................................11-23

Enabling/Disabling IP Services ............................................................................11-27

Managing IP ................................................................................................................11-29

Internet Control Message Protocol (ICMP) .........................................................11-29

Using the Ping Command ....................................................................................11-32

Tracing an IP Route ..............................................................................................11-33

Displaying TCP Information ................................................................................11-33

Displaying UDP Information ...............................................................................11-33

Tunneling ....................................................................................................................11-34

Generic Routing Encapsulation ............................................................................11-34

IP Encapsulation within IP ...................................................................................11-34

Tunneling operation .............................................................................................11-35

Configuring a Tunnel Interface ............................................................................11-35

Verifying the IP Configuration ...................................................................................11-37

Contents

8 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Chapter 12 Configuring Multiple VRF .......................................................................................12-1

In This Chapter ..............................................................................................................12-1

VRF Specifications .......................................................................................................12-2

VRF Defaults ................................................................................................................12-2

Quick Steps for Configuring Multiple VRF ..................................................................12-3

Multiple VRF Overview ...............................................................................................12-6

Using the VRF Command Line Interface ..............................................................12-8

ASCII-File-Only Syntax ........................................................................................12-8

VRF Interaction With Other Features ...........................................................................12-9

AAA RADIUS Servers ........................................................................................12-10

BGPv4 ..................................................................................................................12-10

IP-IP and GRE Tunnels ........................................................................................12-10

Management Applications (Telnet and SSH) .......................................................12-10

Quality of Service (QoS) ......................................................................................12-10

SNMP ...................................................................................................................12-11

VLANs .................................................................................................................12-11

UDP/DHCP Relay ................................................................................................12-11

Configuring VRF Instances .........................................................................................12-12

Selecting a VRF Instance .....................................................................................12-13

Assigning IP Interfaces to a VRF Instance ..........................................................12-14

Configuring Routing Protocols for a Specific VRF Instance ...............................12-14

Removing a VRF Instance ...................................................................................12-14

Verifying the VRF Configuration ...............................................................................12-15

Chapter 13 Configuring IPv6 .......................................................................................................13-1

In This Chapter ..............................................................................................................13-1

IPv6 Specifications ........................................................................................................13-2

IPv6 Defaults .................................................................................................................13-3

Quick Steps for Configuring IPv6 Routing ...................................................................13-4

IPv6 Overview ..............................................................................................................13-5

IPv6 Addressing .....................................................................................................13-6

Tunneling IPv6 over IPv4 ....................................................................................13-10

Configuring an IPv6 Interface .....................................................................................13-13

Configuring a Unique Local IPv6 Unicast Address .............................................13-14

Modifying an IPv6 Interface ................................................................................13-14

Removing an IPv6 Interface .................................................................................13-14

Assigning IPv6 Addresses ...........................................................................................13-15

Removing an IPv6 Address ..................................................................................13-16

Configuring IPv6 Tunnel Interfaces ............................................................................13-17

Creating an IPv6 Static Route .....................................................................................13-18

Configuring the Route Preference of a Router ............................................................13-19

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 9

Configuring Route Map Redistribution ......................................................................13-20

Verifying the IPv6 Configuration ...............................................................................13-26

Chapter 14 Configuring IPsec .....................................................................................................14-1

In This Chapter ..............................................................................................................14-1

IPsec Specifications ......................................................................................................14-2

IPsec Defaults ................................................................................................................14-2

Quick Steps for Configuring an IPsec AH Policy .........................................................14-3

Quick Steps for Configuring an IPsec Discard Policy ..................................................14-4

IPsec Overview .............................................................................................................14-4

Encapsulating Security Payload (ESP) ..................................................................14-5

Authentication Header (AH) ..................................................................................14-6

IPsec on the OmniSwtich .......................................................................................14-7

Securing Traffic Using IPsec .................................................................................14-7

Discarding Traffic using IPsec ...............................................................................14-8

Configuring IPsec on the OmniSwitch .........................................................................14-9

Configuring an IPsec Master Key ..........................................................................14-9

Configuring an IPsec Policy .................................................................................14-10

Configuring an IPsec SA ......................................................................................14-14

Additional Examples ............................................................................................14-18

Configuring ESP ..................................................................................................14-18

Discarding RIPng Packets ....................................................................................14-20

Verifying IPsec Configuration ....................................................................................14-20

Chapter 15 Configuring RIP .........................................................................................................15-1

In This Chapter ..............................................................................................................15-1

RIP Specifications .........................................................................................................15-2

RIP Defaults ..................................................................................................................15-2

Quick Steps for Configuring RIP Routing ....................................................................15-3

RIP Overview ................................................................................................................15-4

RIP Version 2 .........................................................................................................15-5

RIP Routing ...................................................................................................................15-6

Loading RIP ...........................................................................................................15-6

Enabling RIP ..........................................................................................................15-7

Creating a RIP Interface .........................................................................................15-7

Enabling a RIP Interface ........................................................................................15-7

RIP Options ...................................................................................................................15-9

Configuring the RIP Forced Hold-Down Interval ..................................................15-9

Configuring the RIP Update Interval .....................................................................15-9

Configuring the RIP Invalid Timer ......................................................................15-10

Configuring the RIP Garbage Timer ....................................................................15-10

Configuring the RIP Hold-Down Timer ..............................................................15-10

Reducing the Frequency of RIP Routing Updates ...............................................15-10

Enabling a RIP Host Route ..................................................................................15-11

Contents

10 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Configuring Redistribution .........................................................................................15-12

RIP Security ................................................................................................................15-18

Configuring Authentication Type ........................................................................15-18

Configuring Passwords ........................................................................................15-18

Verifying the RIP Configuration .................................................................................15-19

Chapter 16 Configuring BFD .......................................................................................................16-1

In This Chapter ..............................................................................................................16-1

BFD Specifications .......................................................................................................16-2

BFD Defaults ................................................................................................................16-2

Quick Steps for Configuring BFD ................................................................................16-3

Quick Steps for Configuring BFD Support for Layer 3 Protocols .........................16-5

BFD Overview ..............................................................................................................16-7

Benefits of Using BFD For Failure Detection .......................................................16-8

How the BFD Protocol Works ...............................................................................16-8

Operational Mode and Echo Function ...................................................................16-9

BFD Packet Formats ..............................................................................................16-9

BFD Session Establishment .................................................................................16-10

Configuring BFD ........................................................................................................16-11

Configuring BFD Session Parameters ..................................................................16-11

Configuring BFD Support for Layer 3 Protocols .................................................16-15

BFD Application Example ..........................................................................................16-23

Example Network Overview ................................................................................16-23

Verifying the BFD Configuration ...............................................................................16-28

Chapter 17 Configuring DHCP Relay .........................................................................................17-1

In This Chapter ..............................................................................................................17-1

DHCP Relay Specifications ..........................................................................................17-2

DHCP Relay Defaults ...................................................................................................17-3

Quick Steps for Setting Up DHCP Relay .....................................................................17-4

DHCP Relay Overview .................................................................................................17-5

DHCP .....................................................................................................................17-6

DHCP and the OmniSwitch ...................................................................................17-6

External DHCP Relay Application ........................................................................17-7

Internal DHCP Relay .............................................................................................17-8

DHCP Relay Implementation .......................................................................................17-9

Global DHCP .........................................................................................................17-9

Per-VLAN DHCP ..................................................................................................17-9

Configuring BOOTP/DHCP Relay Parameters ...................................................17-10

Setting the Forward Delay ....................................................................................17-10

Setting Maximum Hops .......................................................................................17-11

Setting the Relay Forwarding Option ...................................................................17-11

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 11

Using Automatic IP Configuration .............................................................................17-12

Enabling Automatic IP Configuration ..................................................................17-12

Configuring UDP Port Relay ......................................................................................17-13

Enabling/Disabling UDP Port Relay ....................................................................17-14

Specifying a Forwarding VLAN ..........................................................................17-14

How the Relay Agent Processes DHCP Packets from the Client ........................17-15

Verifying the DHCP Relay Configuration ..................................................................17-17

Chapter 18 Configuring VRRP .....................................................................................................18-1

In This Chapter ..............................................................................................................18-1

VRRP Specifications .....................................................................................................18-3

VRRP Defaults ..............................................................................................................18-3

Quick Steps for Creating a Virtual Router ....................................................................18-5

VRRP Overview ............................................................................................................18-6

Why Use VRRP? ....................................................................................................18-7

Definition of a Virtual Router ................................................................................18-7

VRRP MAC Addresses ..........................................................................................18-8

VRRP Startup Delay ..............................................................................................18-9

VRRP Tracking ......................................................................................................18-9

Configuring Collective Management Functionality ...............................................18-9

Interaction With Other Features ....................................................................................18-9

VRRP Configuration Overview ..................................................................................18-10

Basic Virtual Router Configuration .....................................................................18-10

Creating/Deleting a Virtual Router ......................................................................18-10

Specifying an IP Address for a Virtual Router ....................................................18-11

Configuring the Advertisement Interval ..............................................................18-12

Configuring Virtual Router Priority .....................................................................18-12

Setting Preemption for Virtual Routers ................................................................18-12

Enabling/Disabling a Virtual Router ....................................................................18-13

Setting VRRP Traps .............................................................................................18-14

Setting VRRP Startup Delay ................................................................................18-14

Configuring Collective Management Functionality .............................................18-14

Verifying the VRRP Configuration ............................................................................18-18

VRRPv3 Configuration Overview ..............................................................................18-19

Basic VRRPv3 Virtual Router Configuration ......................................................18-19

Creating/Deleting a VRRPv3 Virtual Router .......................................................18-19

Specifying an IPv6 Address for a VRRPv3 Virtual Router .................................18-20

Configuring the VRRPv3 Advertisement Interval ...............................................18-21

Configuring the VRRPv3 Virtual Router Priority ................................................18-21

Setting Preemption for VRRPv3 Virtual Routers ................................................18-22

Enabling/Disabling a VRRPv3 Virtual Router ....................................................18-23

Setting VRRPv3 Traps .........................................................................................18-23

Verifying the VRRPv3 Configuration ........................................................................18-24

Creating Tracking Policies ..........................................................................................18-25

Associating a Tracking Policy with a VRRPv2/VRRPv3 Virtual Router ...........18-25

Contents

12 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

VRRP Application Example .......................................................................................18-26

VRRP Tracking Example .....................................................................................18-28

VRRPv3 Application Example ...................................................................................18-30

VRRPv3 Tracking Example .................................................................................18-31

Chapter 19 Configuring Server Load Balancing ....................................................................19-1

In This Chapter ..............................................................................................................19-1

Server Load Balancing Specifications ..........................................................................19-2

Server Load Balancing Default Values .........................................................................19-3

Quick Steps for Configuring Server Load Balancing ...................................................19-4

Quick Steps for Configuring a QoS Policy Condition Cluster ...............................19-5

Server Load Balancing Overview .................................................................................19-7

Server Load Balancing Cluster Identification ........................................................19-7

Server Load Balancing Example ............................................................................19-8

Weighted Round Robin Distribution Algorithm ....................................................19-9

Server Health Monitoring .....................................................................................19-10

Configuring Server Load Balancing on a Switch .......................................................19-11

Enabling and Disabling Server Load Balancing ..................................................19-11

Configuring and Deleting SLB Clusters ..............................................................19-12

Assigning Servers to and Removing Servers from a Cluster ...............................19-14

Modifying Optional Parameters ..................................................................................19-15

Modifying the Ping Period ...................................................................................19-15

Modifying the Ping Timeout ................................................................................19-15

Modifying the Ping Retries ..................................................................................19-16

Modifying the Relative Weight of a Physical Server ...........................................19-16

Taking Clusters and Servers On/Off Line ...................................................................19-17

Taking a Cluster On/Off Line ..............................................................................19-17

Taking a Server On/Off Line ...............................................................................19-17

Configuring SLB Probes .............................................................................................19-18

Creating SLB Probes ............................................................................................19-18

Deleting SLB Probes ............................................................................................19-18

Associating a Probe with a Cluster ......................................................................19-19

Associating a Probe with a Server ........................................................................19-19

Modifying SLB Probes .........................................................................................19-19

Displaying Server Load Balancing Status and Statistics ............................................19-22

Chapter 20 Configuring IP Multicast Switching .....................................................................20-1

In This Chapter ..............................................................................................................20-1

IPMS Specifications ......................................................................................................20-2

IPMSv6 Specifications ..................................................................................................20-2

IPMS Default Values ....................................................................................................20-3

IPMSv6 Default Values ................................................................................................20-4

IPMS Overview .............................................................................................................20-5

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 13

IPMS Example .......................................................................................................20-5

Reserved IP Multicast Addresses ...........................................................................20-6

IP Multicast Routing ..............................................................................................20-6

Configuring IPMS on a Switch .....................................................................................20-8

Enabling and Disabling IP Multicast Status ...........................................................20-8

Enabling and Disabling IGMP Querier-forwarding ...............................................20-9

Configuring and Restoring the IGMP Version ......................................................20-9

Configuring and Removing an IGMP Static Neighbor ........................................20-10

Configuring and Removing an IGMP Static Querier ...........................................20-11

Configuring and Removing an IGMP Static Group .............................................20-11

Modifying IPMS Parameters .......................................................................................20-13

Modifying the IGMP Query Interval ...................................................................20-13

Modifying the IGMP Last Member Query Interval .............................................20-13

Modifying the IGMP Query Response Interval ...................................................20-14

Modifying the IGMP Router Timeout .................................................................20-15

Modifying the Source Timeout ............................................................................20-16

Enabling and Disabling IGMP Querying .............................................................20-17

Modifying the IGMP Robustness Variable ..........................................................20-17

Enabling and Disabling the IGMP Spoofing ........................................................20-18

Enabling and Disabling the IGMP Zapping .........................................................20-19

Limiting IGMP Multicast Groups ........................................................................20-20

IPMSv6 Overview .......................................................................................................20-21

IPMSv6 Example .................................................................................................20-21

Reserved IPv6 Multicast Addresses .....................................................................20-22

MLD Version 2 ....................................................................................................20-22

Configuring IPMSv6 on a Switch ...............................................................................20-23

Enabling and Disabling IPv6 Multicast Status .....................................................20-23

Enabling and Disabling MLD Querier-forwarding ..............................................20-24

Configuring and Restoring the MLD Version ......................................................20-24

Configuring and Removing an MLD Static Neighbor .........................................20-25

Configuring and Removing an MLD Static Querier ............................................20-26

Configuring and Removing an MLD Static Group ..............................................20-26

Modifying IPMSv6 Parameters ...................................................................................20-28

Modifying the MLD Query Interval .....................................................................20-28

Modifying the MLD Last Member Query Interval ..............................................20-28

Modifying the MLD Query Response Interval ....................................................20-29

Modifying the MLD Router Timeout ...................................................................20-30

Modifying the Source Timeout ............................................................................20-30

Enabling and Disabling the MLD Querying ........................................................20-31

Modifying the MLD Robustness Variable ...........................................................20-32

Enabling and Disabling the MLD Spoofing .........................................................20-33

Enabling and Disabling the MLD Zapping ..........................................................20-33

Limiting MLD Multicast Groups .........................................................................20-34

IPMS Application Example ........................................................................................20-36

IPMSv6 Application Example ....................................................................................20-38

Displaying IPMS Configurations and Statistics ..........................................................20-40

Displaying IPMSv6 Configurations and Statistics ......................................................20-41

Contents

14 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Chapter 21 Configuring QoS .......................................................................................................21-1

In This Chapter ..............................................................................................................21-1

QoS Specifications ........................................................................................................21-3

QoS General Overview .................................................................................................21-4

Classification .................................................................................................................21-6

How Traffic is Classified and Marked ...................................................................21-6

Configuring Trusted Ports ......................................................................................21-8

Congestion Management .............................................................................................21-10

Queue Sets ............................................................................................................21-11

Queue Mapping Tables ........................................................................................21-16

Congestion Avoidance ................................................................................................21-18

WRED Profiles .....................................................................................................21-18

Traffic Policing and Shaping ......................................................................................21-20

Policing .................................................................................................................21-20

Shaping .................................................................................................................21-21

Tri-Color Marking ................................................................................................21-21

Configuring Policy Bandwidth Policing ..............................................................21-23

Configuring Port Bandwidth Shaping ..................................................................21-25

QoS Policy Overview ..................................................................................................21-26

QoS Defaults ...............................................................................................................21-30

Global QoS Defaults ............................................................................................21-30

QoS Port Defaults .................................................................................................21-31

Queue Management Defaults ...............................................................................21-31

Policy Rule Defaults .............................................................................................21-32

Policy Action Defaults .........................................................................................21-32

Default (Built-in) Policies ....................................................................................21-33

Configuring QoS .........................................................................................................21-34

Configuring Global QoS Parameters ..........................................................................21-35

Enabling/Disabling QoS .......................................................................................21-35

Using the QoS Log ...............................................................................................21-35

Setting the Statistics Interval ................................................................................21-38

Returning the Global Configuration to Defaults ..................................................21-38

Verifying Global Settings .....................................................................................21-38

Creating Policies .........................................................................................................21-39

Quick Steps for Creating Policies ........................................................................21-39

ASCII-File-Only Syntax ......................................................................................21-40

Creating Policy Conditions ..................................................................................21-41

Creating Policy Actions .......................................................................................21-42

Creating Policy Rules ...........................................................................................21-43

Verifying Policy Configuration ............................................................................21-47

Using Condition Groups in Policies ............................................................................21-48

Sample Group Configuration ...............................................................................21-48

Creating Network Groups ....................................................................................21-49

Creating Services ..................................................................................................21-50

Creating Service Groups ......................................................................................21-51

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 15

Creating MAC Groups .........................................................................................21-52

Creating Port Groups ............................................................................................21-53

Verifying Condition Group Configuration ...........................................................21-55

Using Map Groups ......................................................................................................21-56

Sample Map Group Configuration .......................................................................21-56

How Map Groups Work .......................................................................................21-57

Creating Map Groups ...........................................................................................21-57

Verifying Map Group Configuration ...................................................................21-58

Using Access Control Lists .........................................................................................21-59

Layer 2 ACLs .......................................................................................................21-59

Layer 3 ACLs .......................................................................................................21-60

IPv6 ACLs ............................................................................................................21-62

Multicast Filtering ACLs .....................................................................................21-62

Using ACL Security Features ..............................................................................21-63

Applying the Configuration ........................................................................................21-66

Interaction With LDAP Policies ..........................................................................21-67

Verifying the Applied Policy Configuration ........................................................21-68

Policy Applications .....................................................................................................21-69

Basic QoS Policies ...............................................................................................21-69

Redirection Policies ..............................................................................................21-71

Policy Based Mirroring ........................................................................................21-72

ICMP Policy Example ..........................................................................................21-72

802.1p and ToS/DSCP Marking and Mapping ....................................................21-73

Policy Based Routing ...........................................................................................21-74

Chapter 22 Managing Policy Servers .......................................................................................22-1

In This Chapter ..............................................................................................................22-1

Policy Server Specifications .........................................................................................22-2

Policy Server Defaults ...................................................................................................22-2

Policy Server Overview ................................................................................................22-3

Installing the LDAP Policy Server ................................................................................22-3

Modifying Policy Servers .............................................................................................22-4

Modifying LDAP Policy Server Parameters ..........................................................22-4

Disabling the Policy Server From Downloading Policies ......................................22-4

Modifying the Port Number ...................................................................................22-5

Modifying the Policy Server Username and Password ..........................................22-5

Modifying the Searchbase ......................................................................................22-5

Configuring a Secure Socket Layer for a Policy Server ........................................22-6

Loading Policies From an LDAP Server ................................................................22-6

Removing LDAP Policies From the Switch ..........................................................22-6

Interaction With CLI Policies ................................................................................22-7

Verifying the Policy Server Configuration ...................................................................22-7

Contents

16 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

Chapter 23 Managing Authentication Servers ......................................................................23-1

In This Chapter ..............................................................................................................23-1

Authentication Server Specifications ............................................................................23-2

Server Defaults ..............................................................................................................23-3

RADIUS Authentication Servers ...........................................................................23-3

TACACS+ Authentication Servers ........................................................................23-3

LDAP Authentication Servers ................................................................................23-3

Quick Steps For Configuring Authentication Servers ..................................................23-4

Server Overview ............................................................................................................23-5

Backup Authentication Servers ..............................................................................23-5

Authenticated Switch Access .................................................................................23-5

RADIUS Servers ...........................................................................................................23-7

RADIUS Server Attributes .....................................................................................23-7

Configuring the RADIUS Client ..........................................................................23-11

TACACS+ Server .......................................................................................................23-12

TACACS+ Client Limitations ..............................................................................23-12

Configuring the TACACS+ Client .......................................................................23-13

LDAP Servers .............................................................................................................23-14

Setting Up the LDAP Authentication Server .......................................................23-14

LDAP Server Details ............................................................................................23-15

Directory Server Schema for LDAP Authentication ............................................23-20

Configuring the LDAP Authentication Client .....................................................23-25

Verifying the Authentication Server Configuration ....................................................23-27

Chapter 24 Configuring Port Mapping .....................................................................................24-1

In This Chapter ..............................................................................................................24-1

Port Mapping Specifications .........................................................................................24-2

Port Mapping Defaults ..................................................................................................24-2

Quick Steps for Configuring Port Mapping ..................................................................24-2

Creating/Deleting a Port Mapping Session ...................................................................24-3

Creating a Port Mapping Session ...........................................................................24-3

Deleting a Port Mapping Session ...........................................................................24-3

Enabling/Disabling a Port Mapping Session .................................................................24-4

Enabling a Port Mapping Session ..........................................................................24-4

Disabling a Port Mapping Session .........................................................................24-4

Disabling the Flooding of Unknown Unicast Traffic .............................................24-4

Configuring a Port Mapping Direction .........................................................................24-4

Configuring Unidirectional Port Mapping .............................................................24-4

Restoring Bidirectional Port Mapping ...................................................................24-4

Sample Port Mapping Configuration ............................................................................24-5

Example Port Mapping Overview ..........................................................................24-5

Example Port Mapping Configuration Steps .........................................................24-6

Verifying the Port Mapping Configuration ...................................................................24-6

Contents

OmniSwitch AOS Release 7 Network Configuration Guide March 2011 17

Chapter 25 Configuring Learned Port Security ......................................................................25-1

In This Chapter ..............................................................................................................25-1

Learned Port Security Specifications ............................................................................25-2

Learned Port Security Defaults ....................................................................................25-2

Sample Learned Port Security Configuration ...............................................................25-3

Learned Port Security Overview ...................................................................................25-5

How LPS Authorizes Source MAC Addresses ......................................................25-6

Dynamic Configuration of Authorized MAC Addresses .......................................25-6

Static Configuration of Authorized MAC Addresses ............................................25-7

Understanding the LPS Table ................................................................................25-7

Port and Link Aggregate Security Violation ..........................................................25-8

Configuring Learned Port Security ...............................................................................25-9

Enabling/Disabling Learned Port Security .............................................................25-9

Configuring a Source Learning Time Limit .........................................................25-10

Configuring the Number of Bridged MAC Addresses Allowed ..........................25-11

Configuring the Number of Filtered MAC Addresses Allowed ..........................25-11

Configuring an Authorized MAC Address Range ...............................................25-12

Selecting the Security Violation Mode ................................................................25-12

Displaying Learned Port Security Information ...........................................................25-13

Chapter 26 Diagnosing Switch Problems ................................................................................26-1

In This Chapter ..............................................................................................................26-1

Port Mirroring Overview ...............................................................................................26-3

Port Mirroring Specifications .................................................................................26-3

Port Mirroring Defaults ..........................................................................................26-3

Quick Steps for Configuring Port Mirroring ..........................................................26-4

Port Monitoring Overview ............................................................................................26-5

Port Monitoring Specifications ..............................................................................26-5

Port Monitoring Defaults .......................................................................................26-5

Quick Steps for Configuring Port Monitoring .......................................................26-6

sFlow Overview ............................................................................................................26-7

sFlow Specifications ..............................................................................................26-7

sFlow Defaults ........................................................................................................26-7

Quick Steps for Configuring sFlow .......................................................................26-8

Remote Monitoring (RMON) Overview .....................................................................26-10

RMON Specifications ..........................................................................................26-10

RMON Probe Defaults .........................................................................................26-11

Quick Steps for Enabling/Disabling RMON Probes ............................................26-11

Switch Health Overview .............................................................................................26-12

Switch Health Specifications ...............................................................................26-12

Switch Health Defaults .........................................................................................26-13

Quick Steps for Configuring Switch Health ........................................................26-13

Port Mirroring .............................................................................................................26-14

What Ports Can Be Mirrored? ..............................................................................26-14

How Port Mirroring Works ..................................................................................26-14

Contents

18 OmniSwitch AOS Release 7 Network Configuration Guide March 2011

What Happens to the Mirroring Port ....................................................................26-15

Mirroring on Multiple Ports .................................................................................26-15

Using Port Mirroring with External RMON Probes ............................................26-15

Remote Port Mirroring .........................................................................................26-17

Creating a Mirroring Session ...............................................................................26-18

Unblocking Ports (Protection from Spanning Tree) ............................................26-19

Enabling or Disabling Mirroring Status ...............................................................26-19

Disabling a Mirroring Session (Disabling Mirroring Status) ...............................26-19

Configuring Port Mirroring Direction ..................................................................26-20

Enabling or Disabling a Port Mirroring Session (Shorthand) ..............................26-20

Displaying Port Mirroring Status .........................................................................26-21

Deleting A Mirroring Session ..............................................................................26-21

Configuring Remote Port Mirroring ....................................................................26-22

Port Monitoring ...........................................................................................................26-23

Configuring a Port Monitoring Session ...............................................................26-24

Enabling a Port Monitoring Session .....................................................................26-24

Disabling a Port Monitoring Session ...................................................................26-25

Deleting a Port Monitoring Session .....................................................................26-25

Pausing a Port Monitoring Session ......................................................................26-25

Configuring Port Monitoring Session Persistence ...............................................26-25

Configuring a Port Monitoring Data File .............................................................26-25

Configuring Port Monitoring Direction ...............................................................26-26

Configuring capture-type .....................................................................................26-27

Displaying Port Monitoring Status and Data .......................................................26-27

sFlow ...........................................................................................................................26-29

sFlow Manager .....................................................................................................26-29

Receiver ................................................................................................................26-29

Sampler .................................................................................................................26-30

Poller ....................................................................................................................26-30

Configuring a sFlow Session ................................................................................26-30

Configuring a Fixed Primary Address .................................................................26-31

Displaying a sFlow Receiver ................................................................................26-31

Displaying a sFlow Sampler ................................................................................26-32

Displaying a sFlow Poller ....................................................................................26-32

Displaying a sFlow Agent ....................................................................................26-33

Deleting a sFlow Session .....................................................................................26-33

Remote Monitoring (RMON) .....................................................................................26-34

Enabling or Disabling RMON Probes ..................................................................26-36

Displaying RMON Tables ....................................................................................26-37

Monitoring Switch Health ...........................................................................................26-41

Configuring Resource Thresholds ........................................................................26-43

Displaying Health Threshold Limits ....................................................................26-44

Configuring Sampling Intervals ...........................................................................26-45

Viewing Sampling Intervals .................................................................................26-45

Viewing Health Statistics for the Switch .............................................................26-46

Viewing Health Statistics for a Specific Interface ...............................................26-47

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