Cisco Systems Telephone 2950 User manual

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Catalyst 2950 Desktop Switch Software
Configuration Guide
Cisco IOS Release 12.1(11)EA1
August 2002
Customer Order Number: DOC-7811380=
Text Part Number: 78-11380-05
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Catalyst 2950 Desktop Switch Software Configuration Guide
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CONTENTS
Preface xxiii
Audience xxiii
Purpose xxiii
Organization xxiv
Conventions xxvi
Related Publications xxvii
Obtaining Documentation xxvii
World Wide Web xxvii
Documentation CD-ROM xxviii
Ordering Documentation xxviii
Documentation Feedback xxviii
Obtaining Technical Assistance xxviii
Cisco.com xxix
Technical Assistance Center xxix
Cisco TAC Website xxix
Cisco TAC Escalation Center xxx
CHAPTER
1 Overview 1-1
Features 1-1
Management Options 1-5
Management Interface Options 1-6
Advantages of Using CMS and Clustering Switches 1-6
Network Configuration Examples 1-7
Design Concepts for Using the Switch 1-7
Small to Medium-Sized Network Configuration 1-10
Collapsed Backbone and Switch Cluster Configuration 1-12
Large Campus Configuration 1-13
Multidwelling Network Using Catalyst 2950 Switches 1-14
Long-Distance, High-Bandwidth Transport Configuration 1-16
Where to Go Next 1-17
Contents
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CHAPTER
2 Using the Command-Line Interface 2-1
IOS Command Modes 2-1
Getting Help 2-3
Abbreviating Commands 2-3
Using no and default Forms of Commands 2-4
Understanding CLI Messages 2-4
Using Command History 2-5
Changing the Command History Buffer Size 2-5
Recalling Commands 2-5
Disabling the Command History Feature 2-6
Using Editing Features 2-6
Enabling and Disabling Editing Features 2-6
Editing Commands through Keystrokes 2-7
Editing Command Lines that Wrap 2-8
Searching and Filtering Output of show and more Commands 2-9
Accessing the CLI 2-9
Accessing the CLI from a Browser 2-10
CHAPTER
3 Getting Started with CMS 3-1
Features 3-2
Front Panel View 3-4
Cluster Tree 3-5
Front-Panel Images 3-5
Redundant Power System LED 3-6
Port Modes and LEDs 3-7
VLAN Membership Modes 3-8
Topology View 3-9
Topology Icons 3-11
Device and Link Labels 3-12
Colors in the Topology View 3-12
Topology Display Options 3-13
Menus and Toolbar 3-14
Menu Bar 3-14
Toolbar 3-19
Front Panel View Popup Menus 3-20
Device Popup Menu 3-20
Port Popup Menu 3-20
Contents
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Topology View Popup Menus 3-21
Link Popup Menu 3-21
Device Popup Menus 3-22
Interaction Modes 3-23
Guide Mode 3-24
Expert Mode 3-24
Wizards 3-24
Tool Tips 3-25
Online Help 3-25
CMS Window Components 3-26
Host Name List 3-26
Tabs, Lists, and Tables 3-27
Icons Used in Windows 3-27
Buttons 3-27
Accessing CMS 3-28
Access Modes in CMS 3-29
HTTP Access to CMS 3-29
Verifying Your Changes 3-30
Change Notification 3-30
Error Checking 3-30
Saving Your Configuration 3-30
Restoring Your Configuration 3-31
CMS Preferences 3-31
Using Different Versions of CMS 3-31
Where to Go Next 3-32
CHAPTER
4 Assigning the Switch IP Address and Default Gateway 4-1
Understanding the Boot Process 4-1
Assigning Switch Information 4-2
Default Switch Information 4-3
Understanding DHCP-Based Autoconfiguration 4-3
DHCP Client Request Process 4-4
Configuring the DHCP Server 4-5
Configuring the TFTP Server 4-5
Configuring the DNS 4-6
Configuring the Relay Device 4-6
Obtaining Configuration Files 4-7
Example Configuration 4-8
Contents
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Manually Assigning IP Information 4-10
Checking and Saving the Running Configuration 4-10
CHAPTER
5 Configuring IE2100 CNS Agents 5-1
Understanding IE2100 Series Configuration Registrar Software 5-1
CNS Configuration Service 5-2
CNS Event Service 5-3
NameSpace Mapper 5-3
What You Should Know About ConfigID, DeviceID, and Host Name 5-3
ConfigID 5-3
DeviceID 5-4
Host Name and DeviceID 5-4
Using Host Name, DeviceID, and ConfigID 5-4
Understanding CNS Embedded Agents 5-5
Initial Configuration 5-5
Incremental (Partial) Configuration 5-6
Synchronized Configuration 5-6
Configuring CNS Embedded Agents 5-6
Enabling Automated CNS Configuration 5-6
Enabling the CNS Event Agent 5-8
Enabling the CNS Configuration Agent 5-9
Enabling an Initial Configuration 5-9
Enabling a Partial Configuration 5-12
Displaying CNS Configuration 5-12
CHAPTER
6 Clustering Switches 6-1
Understanding Switch Clusters 6-2
Command Switch Characteristics 6-3
Standby Command Switch Characteristics 6-3
Candidate Switch and Member Switch Characteristics 6-4
Planning a Switch Cluster 6-5
Automatic Discovery of Cluster Candidates and Members 6-5
Discovery through CDP Hops 6-6
Discovery through Non-CDP-Capable and Noncluster-Capable Devices 6-8
Discovery through the Same Management VLAN 6-9
Discovery through Different Management VLANs 6-10
Discovery of Newly Installed Switches 6-11
Contents
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HSRP and Standby Command Switches 6-13
Virtual IP Addresses 6-14
Other Considerations for Cluster Standby Groups 6-14
Automatic Recovery of Cluster Configuration 6-16
IP Addresses 6-16
Host Names 6-17
Passwords 6-17
SNMP Community Strings 6-17
TACACS+ and RADIUS 6-18
Access Modes in CMS 6-18
Management VLAN 6-19
LRE Profiles 6-19
Availability of Switch-Specific Features in Switch Clusters 6-20
Creating a Switch Cluster 6-20
Enabling a Command Switch 6-20
Adding Member Switches 6-21
Creating a Cluster Standby Group 6-23
Verifying a Switch Cluster 6-25
Using the CLI to Manage Switch Clusters 6-26
Catalyst 1900 and Catalyst 2820 CLI Considerations 6-26
Using SNMP to Manage Switch Clusters 6-27
CHAPTER
7 Administering the Switch 7-1
Preventing Unauthorized Access to Your Switch 7-1
Protecting Access to Privileged EXEC Commands 7-2
Default Password and Privilege Level Configuration 7-2
Setting or Changing a Static Enable Password 7-3
Protecting Enable and Enable Secret Passwords with Encryption 7-4
Setting a Telnet Password for a Terminal Line 7-5
Configuring Username and Password Pairs 7-6
Configuring Multiple Privilege Levels 7-7
Setting the Privilege Level for a Command 7-7
Changing the Default Privilege Level for Lines 7-8
Logging into and Exiting a Privilege Level 7-9
Controlling Switch Access with TACACS+ 7-9
Understanding TACACS+ 7-9
TACACS+ Operation 7-11
Contents
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Configuring TACACS+ 7-11
Default TACACS+ Configuration 7-12
Identifying the TACACS+ Server Host and Setting the Authentication Key 7-12
Configuring TACACS+ Login Authentication 7-13
Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 7-15
Starting TACACS+ Accounting 7-16
Displaying the TACACS+ Configuration 7-16
Controlling Switch Access with RADIUS 7-17
Understanding RADIUS 7-17
RADIUS Operation 7-18
Configuring RADIUS 7-19
Default RADIUS Configuration 7-19
Identifying the RADIUS Server Host 7-19
Configuring RADIUS Login Authentication 7-22
Defining AAA Server Groups 7-24
Configuring RADIUS Authorization for User Privileged Access and Network Services 7-26
Starting RADIUS Accounting 7-27
Configuring Settings for All RADIUS Servers 7-28
Configuring the Switch to Use Vendor-Specific RADIUS Attributes 7-28
Configuring the Switch for Vendor-Proprietary RADIUS Server Communication 7-29
Displaying the RADIUS Configuration 7-30
Configuring the Switch for Local Authentication and Authorization 7-31
Managing the System Time and Date 7-32
Understanding the System Clock 7-32
Understanding Network Time Protocol 7-32
Configuring NTP 7-34
Default NTP Configuration 7-35
Configuring NTP Authentication 7-35
Configuring NTP Associations 7-36
Configuring NTP Broadcast Service 7-37
Configuring NTP Access Restrictions 7-38
Configuring the Source IP Address for NTP Packets 7-40
Displaying the NTP Configuration 7-41
Configuring Time and Date Manually 7-41
Setting the System Clock 7-42
Displaying the Time and Date Configuration 7-42
Configuring the Time Zone 7-43
Configuring Summer Time (Daylight Saving Time) 7-44
Contents
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Configuring a System Name and Prompt 7-46
Default System Name and Prompt Configuration 7-46
Configuring a System Name 7-46
Configuring a System Prompt 7-47
Understanding DNS 7-47
Default DNS Configuration 7-48
Setting Up DNS 7-48
Displaying the DNS Configuration 7-49
Creating a Banner 7-49
Default Banner Configuration 7-49
Configuring a Message-of-the-Day Login Banner 7-50
Configuring a Login Banner 7-51
Managing the MAC Address Table 7-52
Building the Address Table 7-52
MAC Addresses and VLANs 7-53
Default MAC Address Table Configuration 7-53
Changing the Address Aging Time 7-53
Removing Dynamic Address Entries 7-54
Configuring MAC Address Notification Traps 7-54
Adding and Removing Static Address Entries 7-56
Adding and Removing Secure Addresses 7-57
Displaying Address Table Entries 7-58
Managing the ARP Table 7-59
CHAPTER
8 Configuring 802.1X Port-Based Authentication 8-1
Understanding 802.1X Port-Based Authentication 8-1
Device Roles 8-2
Authentication Initiation and Message Exchange 8-3
Ports in Authorized and Unauthorized States 8-4
Supported Topologies 8-5
Configuring 802.1X Authentication 8-5
Default 802.1X Configuration 8-6
802.1X Configuration Guidelines 8-7
Enabling 802.1X Authentication 8-8
Configuring the Switch-to-RADIUS-Server Communication 8-9
Enabling Periodic Re-Authentication 8-10
Manually Re-Authenticating a Client Connected to a Port 8-11
Changing the Quiet Period 8-11
Changing the Switch-to-Client Retransmission Time 8-12
Contents
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Setting the Switch-to-Client Frame-Retransmission Number 8-13
Enabling Multiple Hosts 8-13
Resetting the 802.1X Configuration to the Default Values 8-14
Displaying 802.1X Statistics and Status 8-14
CHAPTER
9 Configuring Interface Characteristics 9-1
Understanding Interface Types 9-1
Port-Based VLANs 9-1
Switch Ports 9-2
Access Ports 9-2
Trunk Ports 9-3
EtherChannel Port Groups 9-3
Connecting Interfaces 9-3
Using the Interface Command 9-4
Procedures for Configuring Interfaces 9-5
Configuring a Range of Interfaces 9-6
Configuring and Using Interface Range Macros 9-8
Configuring Layer 2 Interfaces 9-9
Default Layer 2 Ethernet Interface Configuration 9-9
Configuring Interface Speed and Duplex Mode 9-10
Configuration Guidelines 9-11
Setting the Interface Speed and Duplex Parameters 9-11
Configuring IEEE 802.3X Flow Control on Gigabit Ethernet Ports 9-12
Adding a Description for an Interface 9-13
Monitoring and Maintaining the Interfaces 9-14
Monitoring Interface and Controller Status 9-14
Clearing and Resetting Interfaces and Counters 9-16
Shutting Down and Restarting the Interface 9-17
CHAPTER
10 Configuring STP 10-1
Understanding Spanning-Tree Features 10-1
STP Overview 10-2
Supported Spanning-Tree Instances 10-2
Bridge Protocol Data Units 10-2
Election of the Root Switch 10-3
Bridge ID, Switch Priority, and Extended System ID 10-4
Spanning-Tree Timers 10-4
Creating the Spanning-Tree Topology 10-5
Contents
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Spanning-Tree Interface States 10-5
Blocking State 10-7
Listening State 10-7
Learning State 10-7
Forwarding State 10-7
Disabled State 10-8
Spanning-Tree Address Management 10-8
STP and IEEE 802.1Q Trunks 10-8
Spanning Tree and Redundant Connectivity 10-8
Accelerated Aging to Retain Connectivity 10-9
Configuring Spanning-Tree Features 10-9
Default STP Configuration 10-10
STP Configuration Guidelines 10-10
Disabling STP 10-12
Configuring the Root Switch 10-12
Configuring a Secondary Root Switch 10-14
Configuring the Port Priority 10-15
Configuring the Path Cost 10-16
Configuring the Switch Priority of a VLAN 10-18
Configuring the Hello Time 10-19
Configuring the Forwarding-Delay Time for a VLAN 10-19
Configuring the Maximum-Aging Time for a VLAN 10-20
Configuring STP for Use in a Cascaded Stack 10-20
Displaying the Spanning-Tree Status 10-21
CHAPTER
11 Configuring RSTP and MSTP 11-1
Understanding RSTP 11-2
Port Roles and the Active Topology 11-2
Rapid Convergence 11-3
Synchronization of Port Roles 11-4
Bridge Protocol Data Unit Format and Processing 11-5
Processing Superior BPDU Information 11-6
Processing Inferior BPDU Information 11-6
Topology Changes 11-6
Understanding MSTP 11-7
Multiple Spanning-Tree Regions 11-7
IST, CIST, and CST 11-8
Operations Within an MST Region 11-8
Operations Between MST Regions 11-9
Contents
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Hop Count 11-10
Boundary Ports 11-10
Interoperability with 802.1D STP 11-11
Configuring RSTP and MSTP Features 11-11
Default RSTP and MSTP Configuration 11-12
RSTP and MSTP Configuration Guidelines 11-12
Specifying the MST Region Configuration and Enabling MSTP 11-13
Configuring the Root Switch 11-14
Configuring a Secondary Root Switch 11-16
Configuring the Port Priority 11-17
Configuring the Path Cost 11-18
Configuring the Switch Priority 11-19
Configuring the Hello Time 11-19
Configuring the Forwarding-Delay Time 11-20
Configuring the Maximum-Aging Time 11-21
Configuring the Maximum-Hop Count 11-21
Specifying the Link Type to Ensure Rapid Transitions 11-22
Restarting the Protocol Migration Process 11-22
Displaying the MST Configuration and Status 11-23
CHAPTER
12 Configuring Optional Spanning-Tree Features 12-1
Understanding Optional Spanning-Tree Features 12-1
Understanding Port Fast 12-2
Understanding BPDU Guard 12-3
Understanding BPDU Filtering 12-3
Understanding UplinkFast 12-4
Understanding Cross-Stack UplinkFast 12-5
How CSUF Works 12-6
Events That Cause Fast Convergence 12-7
Limitations 12-8
Connecting the Stack Ports 12-8
Understanding BackboneFast 12-10
Understanding Root Guard 12-12
Understanding Loop Guard 12-13
Configuring Optional Spanning-Tree Features 12-13
Default Optional Spanning-Tree Configuration 12-14
Enabling Port Fast 12-14
Enabling BPDU Guard 12-15
Enabling BPDU Filtering 12-16
Contents
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Enabling UplinkFast for Use with Redundant Links 12-17
Enabling Cross-Stack UplinkFast 12-18
Enabling BackboneFast 12-19
Enabling Root Guard 12-19
Enabling Loop Guard 12-20
Displaying the Spanning-Tree Status 12-21
CHAPTER
13 Configuring VLANs 13-1
Understanding VLANs 13-1
Supported VLANs 13-2
VLAN Port Membership Modes 13-3
Configuring Normal-Range VLANs 13-4
Token Ring VLANs 13-5
Normal-Range VLAN Configuration Guidelines 13-5
VLAN Configuration Mode Options 13-6
VLAN Configuration in config-vlan Mode 13-6
VLAN Configuration in VLAN Configuration Mode 13-6
Saving VLAN Configuration 13-7
Default Ethernet VLAN Configuration 13-8
Creating or Modifying an Ethernet VLAN 13-8
Deleting a VLAN 13-10
Assigning Static-Access Ports to a VLAN 13-11
Configuring Extended-Range VLANs 13-12
Default VLAN Configuration 13-12
Extended-Range VLAN Configuration Guidelines 13-12
Creating an Extended-Range VLAN 13-13
Displaying VLANs 13-14
Configuring VLAN Trunks 13-15
Trunking Overview 13-15
802.1Q Configuration Considerations 13-16
Default Layer 2 Ethernet Interface VLAN Configuration 13-17
Configuring an Ethernet Interface as a Trunk Port 13-17
Interaction with Other Features 13-17
Configuring a Trunk Port 13-18
Defining the Allowed VLANs on a Trunk 13-19
Changing the Pruning-Eligible List 13-20
Configuring the Native VLAN for Untagged Traffic 13-20
Contents
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Load Sharing Using STP 13-21
Load Sharing Using STP Port Priorities 13-21
Load Sharing Using STP Path Cost 13-23
Configuring VMPS 13-24
Understanding VMPS 13-25
Dynamic Port VLAN Membership 13-25
VMPS Database Configuration File 13-26
Default VMPS Configuration 13-27
VMPS Configuration Guidelines 13-28
Configuring the VMPS Client 13-28
Entering the IP Address of the VMPS 13-28
Configuring Dynamic Access Ports on VMPS Clients 13-29
Reconfirming VLAN Memberships 13-30
Changing the Reconfirmation Interval 13-30
Changing the Retry Count 13-30
Monitoring the VMPS 13-31
Troubleshooting Dynamic Port VLAN Membership 13-31
VMPS Configuration Example 13-32
CHAPTER
14 Configuring VTP 14-1
Understanding VTP 14-1
The VTP Domain 14-2
VTP Modes 14-3
VTP Advertisements 14-3
VTP Version 2 14-4
VTP Pruning 14-4
Configuring VTP 14-6
Default VTP Configuration 14-6
VTP Configuration Options 14-7
VTP Configuration in Global Configuration Modes 14-7
VTP Configuration in VLAN Configuration Mode 14-7
VTP Configuration Guidelines 14-8
Domain Names 14-8
Passwords 14-8
Upgrading from Previous Software Releases 14-8
VTP Version 14-9
Configuration Requirements 14-9
Configuring a VTP Server 14-9
Configuring a VTP Client 14-11
Contents
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Disabling VTP (VTP Transparent Mode) 14-12
Enabling VTP Version 2 14-13
Enabling VTP Pruning 14-14
Adding a VTP Client Switch to a VTP Domain 14-15
Monitoring VTP 14-16
CHAPTER
15 Configuring Voice VLAN 15-1
Understanding Voice VLAN 15-1
Configuring Voice VLAN 15-2
Default Voice VLAN Configuration 15-2
Voice VLAN Configuration Guidelines 15-3
Configuring a Port to Connect to a Cisco 7960 IP Phone 15-3
Configuring Ports to Carry Voice Traffic in 802.1Q Frames 15-4
Configuring Ports to Carry Voice Traffic in 802.1P Priority Tagged Frames 15-4
Overriding the CoS Priority of Incoming Data Frames 15-5
Configuring the IP Phone to Trust the CoS Priority of Incoming Data Frames 15-6
Displaying Voice VLAN 15-6
CHAPTER
16 Configuring IGMP Snooping and MVR 16-1
Understanding IGMP Snooping 16-1
Joining a Multicast Group 16-2
Leaving a Multicast Group 16-4
Immediate-Leave Processing 16-4
Configuring IGMP Snooping 16-5
Default IGMP Snooping Configuration 16-5
Enabling or Disabling IGMP Snooping 16-5
Setting the Snooping Method 16-6
Configuring a Multicast Router Port 16-7
Configuring a Host Statically to Join a Group 16-8
Enabling IGMP Immediate-Leave Processing 16-9
Displaying IGMP Snooping Information 16-9
Understanding Multicast VLAN Registration 16-12
Using MVR in a Multicast Television Application 16-12
Configuring MVR 16-14
Default MVR Configuration 16-14
MVR Configuration Guidelines and Limitations 16-15
Configuring MVR Global Parameters 16-15
Configuring MVR Interfaces 16-16
Contents
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Displaying MVR Information 16-18
Configuring IGMP Filtering 16-19
Default IGMP Filtering Configuration 16-19
Configuring IGMP Profiles 16-20
Applying IGMP Profiles 16-21
Setting the Maximum Number of IGMP Groups 16-22
Displaying IGMP Filtering Configuration 16-23
CHAPTER
17 Configuring Port-Based Traffic Control 17-1
Configuring Storm Control 17-1
Understanding Storm Control 17-1
Default Storm Control Configuration 17-2
Enabling Storm Control 17-2
Disabling Storm Control 17-3
Configuring Protected Ports 17-3
Configuring Port Security 17-4
Understanding Port Security 17-4
Secure MAC Addresses 17-5
Security Violations 17-6
Default Port Security Configuration 17-6
Port Security Configuration Guidelines 17-7
Enabling and Configuring Port Security 17-7
Enabling and Configuring Port Security Aging 17-10
Displaying Port-Based Traffic Control Settings 17-12
CHAPTER
18 Configuring UDLD 18-1
Understanding UDLD 18-1
Configuring UDLD 18-3
Default UDLD Configuration 18-3
Enabling UDLD Globally 18-4
Enabling UDLD on an Interface 18-4
Resetting an Interface Shut Down by UDLD 18-5
Displaying UDLD Status 18-6
Contents
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CHAPTER
19 Configuring CDP 19-1
Understanding CDP 19-1
Configuring CDP 19-2
Default CDP Configuration 19-2
Configuring the CDP Characteristics 19-2
Disabling and Enabling CDP 19-3
Disabling and Enabling CDP on an Interface 19-4
Monitoring and Maintaining CDP 19-5
CHAPTER
20 Configuring SPAN and RSPAN 20-1
Understanding SPAN and RSPAN 20-1
SPAN and RSPAN Concepts and Terminology 20-3
SPAN Session 20-3
Traffic Types 20-3
Source Port 20-4
Destination Port 20-4
Reflector Port 20-4
SPAN Traffic 20-5
SPAN and RSPAN Interaction with Other Features 20-5
SPAN and RSPAN Session Limits 20-6
Default SPAN and RSPAN Configuration 20-6
Configuring SPAN 20-7
SPAN Configuration Guidelines 20-7
Creating a SPAN Session and Specifying Ports to Monitor 20-7
Removing Ports from a SPAN Session 20-9
Configuring RSPAN 20-10
RSPAN Configuration Guidelines 20-10
Creating an RSPAN Session 20-11
Creating an RSPAN Destination Session 20-12
Removing Ports from an RSPAN Session 20-13
Displaying SPAN and RSPAN Status 20-14
Contents
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CHAPTER
21 Configuring RMON 21-1
Understanding RMON 21-1
Configuring RMON 21-2
Default RMON Configuration 21-3
Configuring RMON Alarms and Events 21-3
Configuring RMON Collection on an Interface 21-5
Displaying RMON Status 21-6
CHAPTER
22 Configuring System Message Logging 22-1
Understanding System Message Logging 22-1
Configuring System Message Logging 22-2
System Log Message Format 22-2
Default System Message Logging Configuration 22-3
Disabling and Enabling Message Logging 22-4
Setting the Message Display Destination Device 22-4
Synchronizing Log Messages 22-6
Enabling and Disabling Timestamps on Log Messages 22-7
Enabling and Disabling Sequence Numbers in Log Messages 22-8
Defining the Message Severity Level 22-8
Limiting Syslog Messages Sent to the History Table and to SNMP 22-10
Configuring UNIX Syslog Servers 22-10
Logging Messages to a UNIX Syslog Daemon 22-11
Configuring the UNIX System Logging Facility 22-11
Displaying the Logging Configuration 22-12
CHAPTER
23 Configuring SNMP 23-1
Understanding SNMP 23-1
SNMP Versions 23-2
SNMP Manager Functions 23-3
SNMP Agent Functions 23-3
SNMP Community Strings 23-4
Using SNMP to Access MIB Variables 23-4
SNMP Notifications 23-5
Configuring SNMP 23-5
Default SNMP Configuration 23-6
SNMP Configuration Guidelines 23-6
Disabling the SNMP Agent 23-7
Configuring Community Strings 23-7
Contents
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Configuring SNMP Groups and Users 23-8
Configuring SNMP Notifications 23-10
Setting the Agent Contact and Location Information 23-13
Limiting TFTP Servers Used Through SNMP 23-13
SNMP Examples 23-14
Displaying SNMP Status 23-15
CHAPTER
24 Configuring Network Security with ACLs 24-1
Understanding ACLs 24-2
Handling Fragmented and Unfragmented Traffic 24-3
Understanding Access Control Parameters 24-4
Guidelines for Applying ACLs to Physical Interfaces 24-6
Configuring ACLs 24-6
Unsupported Features 24-7
Creating Standard and Extended IP ACLs 24-7
ACL Numbers 24-8
Creating a Numbered Standard ACL 24-9
Creating a Numbered Extended ACL 24-10
Creating Named Standard and Extended ACLs 24-13
Applying Time Ranges to ACLs 24-15
Including Comments About Entries in ACLs 24-17
Creating Named MAC Extended ACLs 24-18
Creating MAC Access Groups 24-19
Applying ACLs to Terminal Lines or Physical Interfaces 24-20
Applying ACLs to a Terminal Line 24-20
Applying ACLs to a Physical Interface 24-21
Displaying ACL Information 24-21
Displaying ACLs 24-22
Displaying Access Groups 24-23
Examples for Compiling ACLs 24-23
Numbered ACL Examples 24-25
Extended ACL Examples 24-25
Named ACL Example 24-25
Commented IP ACL Entry Examples 24-25
Contents
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Catalyst 2950 Desktop Switch Software Configuration Guide
78-11380-05
CHAPTER
25 Configuring QoS 25-1
Understanding QoS 25-2
Basic QoS Model 25-3
Classification 25-4
Classification Based on QoS ACLs 25-5
Classification Based on Class Maps and Policy Maps 25-6
Policing and Marking 25-6
Mapping Tables 25-7
Queueing and Scheduling 25-7
How Class of Service Works 25-7
Port Priority 25-8
Port Scheduling 25-8
CoS and WRR 25-8
Configuring QoS 25-9
Default QoS Configuration 25-9
Configuration Guidelines 25-10
Configuring Classification Using Port Trust States 25-10
Configuring the Trust State on Ports within the QoS Domain 25-11
Configuring the CoS Value for an Interface 25-13
Configuring Trusted Boundary 25-13
Enabling Pass-Through Mode 25-15
Configuring a QoS Policy 25-16
Classifying Traffic by Using ACLs 25-16
Classifying Traffic by Using Class Maps 25-20
Classifying, Policing, and Marking Traffic by Using Policy Maps 25-21
Configuring CoS Maps 25-24
Configuring the CoS-to-DSCP Map 25-25
Configuring the DSCP-to-CoS Map 25-26
Configuring CoS and WRR 25-27
Configuring CoS Priority Queues 25-27
Configuring WRR 25-27
Displaying QoS Information 25-28
QoS Configuration Examples 25-29
QoS Configuration for the Existing Wiring Closet 25-30
QoS Configuration for the Intelligent Wiring Closet 25-30
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Cisco Systems Telephone 2950 User manual

Category
Software
Type
User manual
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