Cisco 7604 User manual

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Cisco 7600 Series Router
Cisco IOS Software Configuration Guide
Release 12.2(18)SXF and Rebuilds and Earlier Releases
Text Part Number: OL-4266-08

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX and Rebuilds and Erarlier Releases
© 2001–2009, Cisco Systems, Inc. All rights reserved.

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
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CONTENTS
Preface 30
Audience 30
Related Documentation 30
Conventions 31
Product Overview 1
Supported Hardware and Software 1
User Interfaces 1
Configuring Embedded CiscoView Support 2
Understanding Embedded CiscoView 2
Installing and Configuring Embedded CiscoView 2
Displaying Embedded CiscoView Information 3
Software Features Supported in Hardware by the PFC and DFC 3
Command-Line Interfaces 1
Accessing the CLI 2
Accessing the CLI through the EIA/TIA-232 Console Interface 2
Accessing the CLI through Telnet 2
Performing Command Line Processing 3
Performing History Substitution 4
Cisco IOS Command Modes 4
Displaying a List of Cisco IOS Commands and Syntax 5
Securing the CLI 6
ROM-Monitor Command-Line Interface 7
Configuring the Router for the First Time 1
Default Configuration 2
Configuring the Router 2
Using the Setup Facility or the setup Command 2
Using Configuration Mode 10
Checking the Running Configuration Before Saving 10
Saving the Running Configuration Settings 11

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Reviewing the Configuration 11
Configuring a Default Gateway 12
Configuring a Static Route 12
Configuring a BOOTP Server 14
Protecting Access to Privileged EXEC Commands 15
Setting or Changing a Static Enable Password 15
Using the enable password and enable secret Commands 15
Setting or Changing a Line Password 16
Setting TACACS+ Password Protection for Privileged EXEC Mode 16
Encrypting Passwords 17
Configuring Multiple Privilege Levels 17
Recovering a Lost Enable Password 19
Modifying the Supervisor Engine Startup Configuration 20
Understanding the Supervisor Engine Boot Configuration 20
Configuring the Software Configuration Register 21
Specifying the Startup System Image 24
Understanding Flash Memory 24
CONFIG_FILE Environment Variable 25
Controlling Environment Variables 26
Configuring a Supervisor Engine 720 1
Using the Bootflash or Bootdisk on a Supervisor Engine 720 2
Using the Slots on a Supervisor Engine 720 2
Configuring Supervisor Engine 720 Ports 2
Configuring and Monitoring the Switch Fabric Functionality 2
Understanding How the Switch Fabric Functionality Works 3
Configuring the Switch Fabric Functionality 4
Monitoring the Switch Fabric Functionality 4
Configuring a Supervisor Engine 32 1
Flash Memory on a Supervisor Engine 32 2
Supervisor Engine 32 Ports 2
Configuring the Supervisor Engine 2 and the Switch Fabric Module 1
Using the Slots on a Supervisor Engine 2 1
Understanding How the Switch Fabric Module Works 2

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Switch Fabric Module Overview 2
Switch Fabric Module Slots 2
Switch Fabric Redundancy 2
Forwarding Decisions for Layer 3-Switched Traffic 2
Switching Modes 3
Configuring the Switch Fabric Module 3
Configuring the Switching Mode 4
Configuring Fabric-Required Mode 4
Configuring an LCD Message 5
Monitoring the Switch Fabric Module 5
Displaying the Module Information 7
Displaying the Switch Fabric Module Redundancy Status 7
Displaying Fabric Channel Switching Modes 7
Displaying the Fabric Status 8
Displaying the Fabric Utilization 8
Displaying Fabric Errors 8
Configuring NSF with SSO Supervisor Engine Redundancy 1
Understanding NSF with SSO Supervisor Engine Redundancy 1
NSF with SSO Supervisor Engine Redundancy Overview 2
SSO Operation 2
NSF Operation 3
Cisco Express Forwarding 3
Multicast MLS NSF with SSO 4
Routing Protocols 4
NSF Benefits and Restrictions 8
Supervisor Engine Configuration Synchronization 9
Supervisor Engine Redundancy Guidelines and Restrictions 9
Redundancy Configuration Guidelines and Restrictions 10
Hardware Configuration Guidelines and Restrictions 10
Configuration Mode Restrictions 11
NSF Configuration Tasks 11
Configuring SSO 12
Configuring Multicast MLS NSF with SSO 12
Verifying Multicast NSF with SSO 13
Configuring CEF NSF 13
Verifying CEF NSF 13
Configuring BGP NSF 14

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Verifying BGP NSF 14
Configuring OSPF NSF 15
Verifying OSPF NSF 15
Configuring IS-IS NSF 16
Verifying IS-IS NSF 17
Configuring EIGRP NSF 19
Verifying EIGRP NSF 19
Synchronizing the Supervisor Engine Configurations 20
Copying Files to the Redundant Supervisor Engine 20
Configuring RPR and RPR+ Supervisor Engine Redundancy 1
Understanding RPR and RPR+ 2
Supervisor Engine Redundancy Overview 2
RPR Operation 2
RPR+ Operation 3
Supervisor Engine Configuration Synchronization 3
Supervisor Engine Redundancy Guidelines and Restrictions 4
Redundancy Guidelines and Restrictions 4
RPR+ Guidelines and Restrictions 5
Hardware Configuration Guidelines and Restrictions 5
Configuration Mode Restrictions 6
Configuring Supervisor Engine Redundancy 6
Configuring Redundancy 6
Synchronizing the Supervisor Engine Configurations 7
Displaying the Redundancy States 7
Performing a Fast Software Upgrade 8
Copying Files to an MSFC 9
Configuring Interfaces 1
Understanding Interface Configuration 2
Using the Interface Command 2
Configuring a Range of Interfaces 4
Defining and Using Interface-Range Macros 6
Configuring Optional Interface Features 6
Configuring Ethernet Interface Speed and Duplex Mode 7
Configuring Jumbo Frame Support 10

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Configuring IEEE 802.3x Flow Control 13
Configuring the Port Debounce Timer 14
Adding a Description for an Interface 16
Understanding Online Insertion and Removal 16
Monitoring and Maintaining Interfaces 17
Monitoring Interface Status 17
Clearing Counters on an Interface 17
Resetting an Interface 18
Shutting Down and Restarting an Interface 18
Checking the Cable Status Using the TDR 19
Configuring LAN Ports for Layer 2 Switching 1
Understanding How Layer 2 Switching Works 1
Understanding Layer 2 Ethernet Switching 2
Understanding VLAN Trunks 3
Layer 2 LAN Port Modes 4
Default Layer 2 LAN Interface Configuration 5
Layer 2 LAN Interface Configuration Guidelines and Restrictions 5
Configuring LAN Interfaces for Layer 2 Switching 6
Configuring a LAN Port for Layer 2 Switching 7
Configuring a Layer 2 Switching Port as a Trunk 8
Configuring a LAN Interface as a Layer 2 Access Port 14
Configuring a Custom IEEE 802.1Q EtherType Field Value 15
Configuring Flex Links 1
Understanding Flex Links 1
Configuring Flex Links 2
Flex Links Default Configuration 2
Flex Links Configuration Guidelines and Restrictions 2
Configuring Flex Links 3
Monitoring Flex Links 4
Configuring EtherChannels 1
Understanding How EtherChannels Work 1
EtherChannel Feature Overview 2
Understanding How EtherChannels Are Configured 2

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Understanding Port Channel Interfaces 5
Understanding Load Balancing 5
EtherChannel Feature Configuration Guidelines and Restrictions 5
Configuring EtherChannels 7
Configuring Port Channel Logical Interfaces for Layer 3 EtherChannels 7
Configuring Channel Groups 8
Configuring the LACP System Priority and System ID 10
Configuring EtherChannel Load Balancing 11
Configuring the EtherChannel Min-Links Feature 12
Configuring VTP 1
Understanding How VTP Works 1
Understanding the VTP Domain 2
Understanding VTP Modes 2
Understanding VTP Advertisements 3
Understanding VTP Version 2 3
Understanding VTP Pruning 4
VTP Default Configuration 5
VTP Configuration Guidelines and Restrictions 5
Configuring VTP 6
Configuring VTP Global Parameters 6
Configuring the VTP Mode 9
Displaying VTP Statistics 10
Configuring VLANs 1
Understanding How VLANs Work 1
VLAN Overview 2
VLAN Ranges 2
Configurable VLAN Parameters 3
Understanding Token Ring VLANs 3
VLAN Default Configuration 6
VLAN Configuration Guidelines and Restrictions 8
Configuring VLANs 9
VLAN Configuration Options 9
Creating or Modifying an Ethernet VLAN 10
Assigning a Layer 2 LAN Interface to a VLAN 12

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Configuring the Internal VLAN Allocation Policy 12
Configuring VLAN Translation 13
Mapping 802.1Q VLANs to ISL VLANs 16
Saving VLAN Information 17
Configuring Private VLANs 1
Understanding How Private VLANs Work 1
Private VLAN Domains 2
Private VLAN Ports 3
Primary, Isolated, and Community VLANs 3
Private VLAN Port Isolation 4
IP Addressing Scheme with Private VLANs 4
Private VLANs Across Multiple Routers 5
Private VLAN Interaction with Other Features 5
Private VLAN Configuration Guidelines and Restrictions 6
Secondary and Primary VLAN Configuration 7
Private VLAN Port Configuration 9
Limitations with Other Features 9
Configuring Private VLANs 11
Configuring a VLAN as a Private VLAN 11
Associating Secondary VLANs with a Primary VLAN 12
Mapping Secondary VLANs to the Layer 3 VLAN Interface of a Primary VLAN 13
Configuring a Layer 2 Interface as a Private VLAN Host Port 14
Configuring a Layer 2 Interface as a Private VLAN Promiscuous Port 15
Monitoring Private VLANs 17
Configuring Cisco IP Phone Support 1
Understanding Cisco IP Phone Support 1
Cisco IP Phone Connections 2
Cisco IP Phone Voice Traffic 2
Cisco IP Phone Data Traffic 3
Cisco IP Phone Power Configurations 3
Other Cisco IP Phone Features 4
Default Cisco IP Phone Support Configuration 5
Cisco IP Phone Support Configuration Guidelines and Restrictions 5
Configuring Cisco IP Phone Support 6

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Configuring Voice Traffic Support 6
Configuring Data Traffic Support 7
Configuring Inline Power Support 8
Configuring IEEE 802.1Q Tunneling 1
Understanding How 802.1Q Tunneling Works 1
802.1Q Tunneling Configuration Guidelines and Restrictions 3
Configuring 802.1Q Tunneling 6
Configuring 802.1Q Tunnel Ports 6
Configuring the Router to Tag Native VLAN Traffic 6
Configuring Layer 2 Protocol Tunneling 1
Understanding How Layer 2 Protocol Tunneling Works 1
Configuring Support for Layer 2 Protocol Tunneling 2
Configuring Standard-Compliant IEEE MST 1
Understanding MST 1
MST Overview 2
MST Regions 2
IST, CIST, and CST 3
Hop Count 6
Boundary Ports 6
Standard-Compliant MST Implementation 7
Interoperability with IEEE 802.1D-1998 STP 9
Understanding RSTP 9
Port Roles and the Active Topology 10
Rapid Convergence 11
Synchronization of Port Roles 12
Bridge Protocol Data Unit Format and Processing 13
Topology Changes 15
Configuring MST 15
Default MST Configuration 16
MST Configuration Guidelines and Restrictions 16
Specifying the MST Region Configuration and Enabling MST 17
Configuring the Root Bridge 19
Configuring a Secondary Root Bridge 20
Configuring Port Priority 21
Configuring Path Cost 22