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Catalyst 3750-E and 3560-E Switch Software Configuration Guide

OL-9775-02

Chapter34 Configuring Network Security with ACLs

Displaying IPv4 ACL Configuration

Contents

Main Catalyst 3750-E and 3560-E Switch Software Configuration Guide Page CONTENTS Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Preface Audience Purpose Conventions Related Publications Page Page Overview Features Deployment Features Page Performance Features Management Options Manageability Features Availability and Redundancy Features VLAN Features Security Features Page QoS and CoS Features Layer 3 Features Power over Ethernet Features Monitoring Features Default Settings After Initial Switch Configuration Page Page Network Configuration Examples Design Concepts for Using the Switch Page Page Page Page Page 1-22 Small to Medium-Sized Network Using Catalyst 3750-E and 3560-E Switches Page 1-25 Large Network Using Catalyst 3750-E and 3560-E Switches 1-27 1-28 Multidwelling Network Using Catalyst 3750-E Switches Long-Distance, High-Bandwidth Transport Configuration Service Provider POP Mini-POP Gigabit MAN Residential location 1-31 Where to Go Next Before configuring the switch, review these sections for startup information: Page Using the Command-Line Interface Understanding Command Modes Page Understanding the Help System Understanding Abbreviated Commands Understanding no and default Forms of Commands Understanding CLI Error Messages Using Configuration Logging Using Command History Changing the Command History Buffer Size Recalling Commands Disabling the Command History Feature Using Editing Features Enabling and Disabling Editing Features Editing Commands through Keystrokes Editing Command Lines that Wrap Searching and Filtering Output of show and more Commands Accessing the CLI Accessing the CLI through a Console Connection or through Telnet Page Assigning the Switch IP Address and Default Gateway Understanding the Boot Process Assigning Switch Information Default Switch Information Understanding DHCP-Based Autoconfiguration DHCP Client Request Process Configuring DHCP-Based Autoconfiguration DHCP Server Configuration Guidelines Configuring the TFTP Server Configuring the DNS Configuring the Relay Device Obtaining Configuration Files Example Configuration Page Manually Assigning IP Information 3-11 Checking and Saving the Running Configuration Modifying the Startup Configuration Default Boot Configuration Automatically Downloading a Configuration File Specifying the Filename to Read and Write the System Configuration Booting Manually Booting a Specific Software Image Controlling Environment Variables Page Scheduling a Reload of the Software Image Configuring a Scheduled Reload Displaying Scheduled Reload Information Configuring Cisco IOS CNS Agents Understanding Cisco Configuration Engine Software Configuration Service Event Service NameSpace Mapper What You Should Know About the CNS IDs and Device Hostnames ConfigID DeviceID Hostname and DeviceID Using Hostname, DeviceID, and ConfigID Understanding Cisco IOS Agents Initial Configuration V Incremental (Partial) Configuration Synchronized Configuration Configuring Cisco IOS Agents Enabling Automated CNS Configuration Page Enabling the CNS Event Agent Enabling the Cisco IOS CNS Agent Enabling an Initial Configuration Page Enabling a Partial Configuration Displaying CNS Configuration Managing Switch Stacks Understanding Switch Stacks Page Switch Stack Membership Page Stack Master Election and Re-Election Switch Stack Bridge ID and Router MAC Address Stack Member Numbers Stack Member Priority Values Switch Stack Offline Configuration Effects of Adding a Provisioned Switch to a Switch Stack Page Effects of Replacing a Provisioned Switch in a Switch Stack Effects of Removing a Provisioned Switch from a Switch Stack Hardware Compatibility and SDM Mismatch Mode in Switch Stacks Switch Stack Software Compatibility Recommendations Stack Protocol Version Compatibility Major Version Number Incompatibility Among Switches Minor Version Number Incompatibility Among Switches Understanding Auto-Upgrade and Auto-Advise 5-13 Auto-Upgrade and Auto-Advise Example Messages 5-14 Incompatible Software and Stack Member Image Upgrades Switch Stack Configuration Files Additional Considerations for System-Wide Configuration on Switch Stacks Switch Stack Management Connectivity Connectivity to the Switch Stack Through an IP Address Connectivity to the Switch Stack Through an SSH Session Connectivity to the Switch Stack Through Console Ports or Ethernet Management Ports Connectivity to Specific Stack Members Switch Stack Configuration Scenarios Page Configuring the Switch Stack Default Switch Stack Configuration Enabling Persistent MAC Address Page Assigning Stack Member Information Assigning a Stack Member Number Setting the Stack Member Priority Value Provisioning a New Member for a Switch Stack Accessing the CLI of a Specific Stack Member Displaying Switch Stack Information Page Page Clustering Switches Understanding Switch Clusters Page Cluster Command Switch Characteristics Standby Cluster Command Switch Characteristics Candidate Switch and Cluster Member Switch Characteristics Planning a Switch Cluster Automatic Discovery of Cluster Candidates and Members Discovery Through CDP Hops Discovery Through Non-CDP-Capable and Noncluster-Capable Devices Discovery Through Different VLANs Discovery Through Different Management VLANs 6-9 Discovery Through Routed Ports Discovery of Newly Installed Switches HSRP and Standby Cluster Command Switches Virtual IP Addresses Other Considerations for Cluster Standby Groups Automatic Recovery of Cluster Configuration IP Addresses Hostnames Passwords SNMP Community Strings Switch Clusters and Switch Stacks TACACS+ and RADIUS LRE Profiles Using the CLI to Manage Switch Clusters Catalyst 1900 and Catalyst 2820 CLI Considerations Using SNMP to Manage Switch Clusters Page Administering the Switch Managing the System Time and Date Understanding the System Clock Understanding Network Time Protocol Configuring NTP Default NTP Configuration Configuring NTP Authentication Configuring NTP Associations Configuring NTP Broadcast Service Page Configuring NTP Access Restrictions Creating an Access Group and Assigning a Basic IP Access List Page Disabling NTP Services on a Specific Interface Configuring the Source IP Address for NTP Packets Displaying the NTP Configuration Configuring Time and Date Manually Setting the System Clock Displaying the Time and Date Configuration Configuring the Time Zone Configuring Summer Time (Daylight Saving Time) Configuring a System Name and Prompt Default System Name and Prompt Configuration Configuring a System Name Understanding DNS Default DNS Configuration Setting Up DNS Displaying the DNS Configuration Creating a Banner Default Banner Configuration Configuring a Message-of-the-Day Login Banner Configuring a Login Banner Managing the MAC Address Table Building the Address Table MAC Addresses and VLANs MAC Addresses and Switch Stacks Default MAC Address Table Configuration Changing the Address Aging Time Removing Dynamic Address Entries Configuring MAC Address Notification Traps Page Adding and Removing Static Address Entries Configuring Unicast MAC Address Filtering Page Displaying Address Table Entries Managing the ARP Table Page Configuring SDM Templates Understanding the SDM Templates Dual IPv4 and IPv6 SDM Templates SDM Templates and Switch Stacks Configuring the Switch SDM Template Default SDM Template SDM Template Configuration Guidelines Setting the SDM Template 8-6 This example shows how to configure the IPv4-and-IPv6 default template on a desktop switch: Displaying the SDM Templates This is an example of output from the show sdm prefer routing command entered on a de sktop switch: 8-7 Page Configuring Switch-Based Authentication Preventing Unauthorized Access to Your Switch Protecting Access to Privileged EXEC Commands Default Password and Privilege Level Configuration Setting or Changing a Static Enable Password Protecting Enable and Enable Secret Passwords with Encryption Page Disabling Password Recovery Setting a Telnet Password for a Terminal Line Configuring Username and Password Pairs Configuring Multiple Privilege Levels Setting the Privilege Level for a Command Changing the Default Privilege Level for Lines Logging into and Exiting a Privilege Level Controlling Switch Access with TACACS+ Understanding TACACS+ Page TACACS+ Operation Configuring TACACS+ Default TACACS+ Configuration Identifying the TACACS+ Server Host and Setting the Authentication Key Configuring TACACS+ Login Authentication Page Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services Starting TACACS+ Accounting Displaying the TACACS+ Configuration Controlling Switch Access with RADIUS Understanding RADIUS RADIUS Operation Configuring RADIUS Default RADIUS Configuration Identifying the RADIUS Server Host Page Page Configuring RADIUS Login Authentication Page Defining AAA Server Groups Page Configuring RADIUS Authorization for User Privileged Access and Network Services Starting RADIUS Accounting Configuring Settings for All RADIUS Servers Configuring the Switch to Use Vendor-Specific RADIUS Attributes Configuring the Switch for Vendor-Proprietary RADIUS Server Communication Displaying the RADIUS Configuration Controlling Switch Access with Kerberos Understanding Kerberos Page Kerberos Operation Authenticating to a Boundary Switch Obtaining a TGT from a KDC Authenticating to Network Services Configuring Kerberos Configuring the Switch for Local Authentication and Authorization Configuring the Switch for Secure Shell Understanding SSH SSH Servers, Integrated Clients, and Supported Versions Limitations Configuring SSH Configuration Guidelines Setting Up the Switch to Run SSH Configuring the SSH Server Displaying the SSH Configuration and Status Configuring the Switch for Secure Socket Layer HTTP Understanding Secure HTTP Servers and Clients Certificate Authority Trustpoints Page CipherSuites Configuring Secure HTTP Servers and Clients Default SSL Configuration SSL Configuration Guidelines Configuring a CA Trustpoint Configuring the Secure HTTP Server Configuring the Secure HTTP Client Displaying Secure HTTP Server and Client Status Configuring the Switch for Secure Copy Protocol Information About Secure Copy Page Configuring IEEE 802.1x Port-Based Authentication Understanding IEEE 802.1x Port-Based Authentication Device Roles Authentication Process 10-4 The switch re-authenticates a client when one of these situations occurs: Authentication Initiation and Message Exchange Page Ports in Authorized and Unauthorized States IEEE 802.1x Authentication and Switch Stacks IEEE 802.1x Host Mode IEEE 802.1x Accounting IEEE 802.1x Accounting Attribute-Value Pairs Using IEEE 802.1x Authentication with VLAN Assignment Using IEEE 802.1x Authentication with Per-User ACLs Using IEEE 802.1x Authentication with Guest VLAN Using IEEE 802.1x Authentication with Restricted VLAN Using IEEE 802.1x Authentication with Inaccessible Authentication Bypass Using IEEE 802.1x Authentication with Voice VLAN Ports Using IEEE 802.1x Authentication with Port Security Using IEEE 802.1x Authentication with Wake-on-LAN Using IEEE 802.1x Authentication with MAC Authentication Bypass Page Network Admission Control Layer 2 IEEE 802.1x Validation Using Multidomain Authentication Using Web Authentication Configuring IEEE 802.1x Authentication Default IEEE 802.1x Authentication Configuration IEEE 802.1x Authentication Configuration Guidelines IEEE 802.1x Authentication VLAN Assignment, Guest VLAN, Restricted VLAN, and Inaccessible Authentication Bypass MAC Authentication Bypass Configuring IEEE 802.1x Authentication Configuring the Switch-to-RADIUS-Server Communication Page Configuring the Host Mode Configuring Periodic Re-Authentication Manually Re-Authenticating a Client Connected to a Port Changing the Quiet Period Changing the Switch-to-Client Retransmission Time Setting the Switch-to-Client Frame-Retransmission Number Setting the Re-Authentication Number Configuring IEEE 802.1x Accounting Configuring a Guest VLAN Configuring a Restricted VLAN Page Configuring the Inaccessible Authentication Bypass Feature Page Configuring IEEE 802.1x Authentication with WoL Configuring MAC Authentication Bypass Configuring NAC Layer 2 IEEE 802.1x Validation Configuring Web Authentication Page Disabling IEEE 802.1x Authentication on the Port Resetting the IEEE 802.1x Authentication Configuration to the Default Values Displaying IEEE 802.1x Statistics and Status Configuring Interface Characteristics Understanding Interface Types Port-Based VLANs Switch Ports Access Ports Trunk Ports Tunnel Ports Routed Ports Switch Virtual Interfaces EtherChannel Port Groups 10-Gigabit Ethernet Interfaces Power over Ethernet Ports Supported Protocols and Standards Powered-Device Detection and Initial Power Allocation Power Management Modes Power Monitoring and Power Policing Maximum Power Allocation (Cutoff Power) on a PoE Port Power Consumption Values Connecting Interfaces Ethernet Management Port 11-13 Page Using Interface Configuration Mode Procedures for Configuring Interfaces Configuring a Range of Interfaces Page Configuring and Using Interface Range Macros Configuring Ethernet Interfaces Default Ethernet Interface Configuration Configuring Interface Speed and Duplex Mode Speed and Duplex Configuration Guidelines Setting the Interface Speed and Duplex Parameters Configuring IEEE 802.3x Flow Control Configuring Auto-MDIX on an Interface Configuring a Power Management Mode on a PoE Port Budgeting Power for Devices Connected to a PoE Port Page Configuring Power Policing Adding a Description for an Interface Configuring Ethernet Management Ports Configuring Layer 3 Interfaces Page Configuring the System MTU Page Configuring the Cisco Redundant Power System 2300 Page Configuring the Power Supplies Monitoring and Maintaining the Interfaces Monitoring Interface Status Clearing and Resetting Interfaces and Counters Shutting Down and Restarting the Interface Configuring Smartports Macros Understanding Smartports Macros Configuring Smartports Macros Default Smartports Macro Configuration Smartports Macro Configuration Guidelines Creating Smartports Macros Applying Smartports Macros Applying Cisco-Default Smartports Macros Page Displaying Smartports Macros Configuring VLANs Understanding VLANs Page Supported VLANs VLAN Port Membership Modes Configuring Normal-Range VLANs Page Token Ring VLANs Normal-Range VLAN Configuration Guidelines VLAN Configuration Mode Options VLAN Configuration in config-vlan Mode VLAN Configuration in VLAN Database Configuration Mode Saving VLAN Configuration Default Ethernet VLAN Configuration Creating or Modifying an Ethernet VLAN Deleting a VLAN Assigning Static-Access Ports to a VLAN Configuring Extended-Range VLANs Default VLAN Configuration Extended-Range VLAN Configuration Guidelines Creating an Extended-Range VLAN Creating an Extended-Range VLAN with an Internal VLAN ID Displaying VLANs Configuring VLAN Trunks Trunking Overview Page Encapsulation Types IEEE 802.1Q Configuration Considerations Default Layer 2 Ethernet Interface VLAN Configuration Configuring an Ethernet Interface as a Trunk Port Interaction with Other Features Configuring a Trunk Port Defining the Allowed VLANs on a Trunk Changing the Pruning-Eligible List Configuring the Native VLAN for Untagged Traffic Configuring Trunk Ports for Load Sharing Load Sharing Using STP Port Priorities Page Load Sharing Using STP Path Cost Page Configuring VMPS Understanding VMPS Dynamic-Access Port VLAN Membership Default VMPS Client Configuration VMPS Configuration Guidelines Configuring the VMPS Client Entering the IP Address of the VMPS Configuring Dynamic-Access Ports on VMPS Clients Reconfirming VLAN Memberships Changing the Reconfirmation Interval Changing the Retry Count Monitoring the VMPS Troubleshooting Dynamic-Access Port VLAN Membership VMPS Configuration Example 13-34 Configuring VTP Understanding VTP The VTP Domain VTP Modes VTP Advertisements VTP Version 2 VTP Pruning Page VTP and Switch Stacks Configuring VTP Default VTP Configuration VTP Configuration Options VTP Configuration in Global Configuration Mode VTP Configuration in VLAN Database Configuration Mode VTP Configuration Guidelines Domain Names Passwords VTP Version Configuration Requirements Configuring a VTP Server Page Configuring a VTP Client Disabling VTP (VTP Transparent Mode) Enabling VTP Version 2 Enabling VTP Pruning Adding a VTP Client Switch to a VTP Domain Page Monitoring VTP Configuring Voice VLAN Understanding Voice VLAN Cisco IP Phone Voice Traffic Cisco IP Phone Data Traffic Configuring Voice VLAN Default Voice VLAN Configuration Voice VLAN Configuration Guidelines Configuring a Port Connected to a Cisco 7960 IP Phone Configuring Cisco IP Phone Voice Traffic Configuring the Priority of Incoming Data Frames Displaying Voice VLAN Page Configuring Private VLANs Understanding Private VLANs Page IP Addressing Scheme with Private VLANs Private VLANs across Multiple Switches Private-VLAN Interaction with Other Features Private VLANs and Unicast, Broadcast, and Multicast Traffic Private VLANs and SVIs Private VLANs and Switch Stacks Configuring Private VLANs Tasks for Configuring Private VLANs Default Private-VLAN Configuration Private-VLAN Configuration Guidelines Secondary and Primary VLAN Configuration Private-VLAN Port Configuration Limitations with Other Features Configuring and Associating VLANs in a Private VLAN Page Configuring a Layer 2 Interface as a Private-VLAN Host Port Configuring a Layer 2 Interface as a Private-VLAN Promiscuous Port Mapping Secondary VLANs to a Primary VLAN Layer 3 VLAN Interface Monitoring Private VLANs Page Configuring IEEE 802.1Q and Layer 2 Protocol Tunneling Understanding IEEE 802.1Q Tunneling Page Page Configuring IEEE 802.1Q Tunneling Default IEEE 802.1Q Tunneling Configuration IEEE 802.1Q Tunneling Configuration Guidelines Native VLANs System MTU IEEE 802.1Q Tunneling and Other Features Configuring an IEEE 802.1Q Tunneling Port Understanding Layer 2 Protocol Tunneling 17-9 Configuring Layer 2 Protocol Tunneling Default Layer 2 Protocol Tunneling Configuration Layer 2 Protocol Tunneling Configuration Guidelines Configuring Layer 2 Protocol Tunneling Configuring Layer 2 Tunneling for EtherChannels Configuring the SP Edge Switch Page Configuring the Customer Switch 17-17 SP edge switch 2 configuration: Monitoring and Maintaining Tunneling Status Configuring STP Understanding Spanning-Tree Features STP Overview Spanning-Tree Topology and BPDUs Bridge ID, Switch Priority, and Extended System ID Spanning-Tree Interface States Page Blocking State Listening State Learning State Forwarding State Disabled State How a Switch or Port Becomes the Root Switch or Root Port Spanning Tree and Redundant Connectivity Spanning-Tree Address Management Accelerated Aging to Retain Connectivity Spanning-Tree Modes and Protocols Supported Spanning-Tree Instances Spanning-Tree Interoperability and Backward Compatibility STP and IEEE 802.1Q Trunks VLAN-Bridge Spanning Tree Spanning Tree and Switch Stacks Configuring Spanning-Tree Features Default Spanning-Tree Configuration Spanning-Tree Configuration Guidelines Page Changing the Spanning-Tree Mode. Disabling Spanning Tree Configuring the Root Switch Page Configuring a Secondary Root Switch Configuring Port Priority Page Configuring Path Cost Configuring the Switch Priority of a VLAN Configuring Spanning-Tree Timers Configuring the Hello Time Configuring the Forwarding-Delay Time for a VLAN Configuring the Maximum-Aging Time for a VLAN Configuring the Transmit Hold-Count Displaying the Spanning-Tree Status Configuring MSTP Understanding MSTP Multiple Spanning-Tree Regions IST, CIST, and CST Operations Within an MST Region Operations Between MST Regions IEEE 802.1s Terminology Hop Count Boundary Ports IEEE 802.1s Implementation Port Role Naming Change Interoperation Between Legacy and Standard Switches Detecting Unidirectional Link Failure MSTP and Switch Stacks Interoperability with IEEE 802.1D STP Understanding RSTP Port Roles and the Active Topology Rapid Convergence Synchronization of Port Roles Bridge Protocol Data Unit Format and Processing Processing Superior BPDU Information Processing Inferior BPDU Information Topology Changes Configuring MSTP Features Default MSTP Configuration MSTP Configuration Guidelines Specifying the MST Region Configuration and Enabling MSTP Configuring the Root Switch Page Configuring a Secondary Root Switch Configuring Port Priority Configuring Path Cost Configuring the Switch Priority Configuring the Hello Time Configuring the Forwarding-Delay Time Configuring the Maximum-Aging Time Configuring the Maximum-Hop Count Specifying the Link Type to Ensure Rapid Transitions Designating the Neighbor Type Restarting the Protocol Migration Process Displaying the MST Configuration and Status Configuring Optional Spanning-Tree Features Understanding Optional Spanning-Tree Features Understanding Port Fast Understanding BPDU Guard Understanding BPDU Filtering Understanding UplinkFast Page Understanding Cross-Stack UplinkFast How CSUF Works Events that Cause Fast Convergence Understanding BackboneFast Page Understanding EtherChannel Guard Understanding Root Guard Understanding Loop Guard Configuring Optional Spanning-Tree Features Default Optional Spanning-Tree Configuration Optional Spanning-Tree Configuration Guidelines Enabling Port Fast Enabling BPDU Guard Enabling BPDU Filtering Enabling UplinkFast for Use with Redundant Links Enabling Cross-Stack UplinkFast Enabling BackboneFast Enabling EtherChannel Guard Enabling Root Guard Enabling Loop Guard Displaying the Spanning-Tree Status Page Configuring Flex Links and the MAC Address-Table Move Update Feature Understanding Flex Links and the MAC Address-Table Move Update Flex Links VLAN Flex Link Load Balancing and Support failed port comes back up, it resumes forwarding traffic in the preferred vlans. MAC Address-Table Move Update Page Configuring Flex Links and MAC Address-Table Move Update Configuration Guidelines Default Configuration Configuring Flex Links and MAC Address-Table Move Update Configuring Flex Links Page Configuring VLAN Load Balancing on Flex Links Configuring the MAC Address-Table Move Update Feature Page Monitoring Flex Links and the MAC Address-Table Move Update Page Configuring DHCP Features and IP Source Guard Understanding DHCP Features DHCP Server DHCP Relay Agent DHCP Snooping Option-82 Data Insertion Page Circuit ID Suboption Frame Format Remote ID Suboption Frame Format Cisco IOS DHCP Server Database DHCP Snooping Binding Database Circuit ID Suboption Frame Format (for user-configured string): Remote ID Suboption Frame Format (for user-configured string): Page DHCP Snooping and Switch Stacks Configuring DHCP Features Default DHCP Configuration DHCP Snooping Configuration Guidelines Configuring the DHCP Server DHCP Server and Switch Stacks Configuring the DHCP Relay Agent Specifying the Packet Forwarding Address Enabling DHCP Snooping and Option 82 Page Enabling DHCP Snooping on Private VLANs Enabling the Cisco IOS DHCP Server Database Enabling the DHCP Snooping Binding Database Agent Displaying DHCP Snooping Information Understanding IP Source Guard Source IP Address Filtering Source IP and MAC Address Filtering Configuring IP Source Guard Default IP Source Guard Configuration IP Source Guard Configuration Guidelines Enabling IP Source Guard Displaying IP Source Guard Information Page Configuring Dynamic ARP Inspection Understanding Dynamic ARP Inspection Page Interface Trust States and Network Security Rate Limiting of ARP Packets Relative Priority of ARP ACLs and DHCP Snooping Entries Logging of Dropped Packets Configuring Dynamic ARP Inspection Default Dynamic ARP Inspection Configuration Dynamic ARP Inspection Configuration Guidelines Configuring Dynamic ARP Inspection in DHCP Environments Configuring ARP ACLs for Non-DHCP Environments Page Limiting the Rate of Incoming ARP Packets Performing Validation Checks Configuring the Log Buffer Page Displaying Dynamic ARP Inspection Information Page Page Configuring IGMP Snooping and MVR Understanding IGMP Snooping IGMP Versions Joining a Multicast Group Page Leaving a Multicast Group Immediate Leave IGMP Configurable-Leave Timer IGMP Report Suppression IGMP Snooping and Switch Stacks Configuring IGMP Snooping Default IGMP Snooping Configuration Enabling or Disabling IGMP Snooping Setting the Snooping Method Configuring a Multicast Router Port Configuring a Host Statically to Join a Group Enabling IGMP Immediate Leave Configuring the IGMP Leave Timer Configuring TCN-Related Commands Controlling the Multicast Flooding Time After a TCN Event Recovering from Flood Mode Disabling Multicast Flooding During a TCN Event Configuring the IGMP Snooping Querier Disabling IGMP Report Suppression Displaying IGMP Snooping Information Understanding Multicast VLAN Registration Using MVR in a Multicast Television Application Configuring MVR Default MVR Configuration MVR Configuration Guidelines and Limitations Configuring MVR Global Parameters Configuring MVR Interfaces Page Displaying MVR Information Configuring IGMP Filtering and Throttling Default IGMP Filtering and Throttling Configuration Configuring IGMP Profiles Page Applying IGMP Profiles Setting the Maximum Number of IGMP Groups Configuring the IGMP Throttling Action Displaying IGMP Filtering and Throttling Configuration Page Configuring IPv6 MLD Snooping Understanding MLD Snooping Page MLD Messages MLD Queries Multicast Client Aging Robustness Multicast Router Discovery MLD Reports MLD Done Messages and Immediate-Leave Topology Change Notification Processing MLD Snooping in Switch Stacks Configuring IPv6 MLD Snooping Default MLD Snooping Configuration MLD Snooping Configuration Guidelines Enabling or Disabling MLD Snooping Configuring a Static Multicast Group Configuring a Multicast Router Port Enabling MLD Immediate Leave Configuring MLD Snooping Queries Disabling MLD Listener Message Suppression Displaying MLD Snooping Information Page Configuring Port-Based Traffic Control Configuring Storm Control Understanding Storm Control Page Default Storm Control Configuration Configuring Storm Control and Threshold Levels Page Configuring Protected Ports Default Protected Port Configuration Protected Port Configuration Guidelines Configuring a Protected Port Configuring Port Blocking Default Port Blocking Configuration Blocking Flooded Traffic on an Interface Configuring Port Security Understanding Port Security Secure MAC Addresses Security Violations Default Port Security Configuration Port Security Configuration Guidelines Page Enabling and Configuring Port Security Page Page Page Enabling and Configuring Port Security Aging Port Security and Switch Stacks Port Security and Private VLANs Displaying Port-Based Traffic Control Settings Configuring CDP Understanding CDP CDP and Switch Stacks Configuring CDP Default CDP Configuration Configuring the CDP Characteristics Disabling and Enabling CDP Disabling and Enabling CDP on an Interface Monitoring and Maintaining CDP Page CHAPTE R Configuring LLDP and LLDP-MED Understanding LLDP and LLDP-MED Understanding LLDP Understanding LLDP-MED Configuring LLDP and LLDP-MED Default LLDP Configuration Configuring LLDP Characteristics Disabling and Enabling LLDP Globally Disabling and Enabling LLDP on an Interface Configuring LLDP-MED TLVs Monitoring and Maintaining LLDP and LLDP-MED Page Configuring UDLD Understanding UDLD Modes of Operation Methods to Detect Unidirectional Links Configuring UDLD Default UDLD Configuration Configuration Guidelines Enabling UDLD Globally Enabling UDLD on an Interface Resetting an Interface Disabled by UDLD Displaying UDLD Status Page Configuring SPAN and RSPAN Understanding SPAN and RSPAN Local SPAN Remote SPAN SPAN and RSPAN Concepts and Terminology SPAN Sessions Monitored Traffic Source Ports Source VLANs VLAN Filtering Destination Port RSPAN VLAN SPAN and RSPAN Interaction with Other Features SPAN and RSPAN and Switch Stacks Configuring SPAN and RSPAN Default SPAN and RSPAN Configuration Configuring Local SPAN SPAN Configuration Guidelines Creating a Local SPAN Session Page Creating a Local SPAN Session and Configuring Incoming Traffic Specifying VLANs to Filter Configuring RSPAN RSPAN Configuration Guidelines Configuring a VLAN as an RSPAN VLAN Creating an RSPAN Source Session Creating an RSPAN Destination Session Creating an RSPAN Destination Session and Configuring Incoming Traffic Page Specifying VLANs to Filter Displaying SPAN and RSPAN Status Page Configuring RMON Understanding RMON Configuring RMON Default RMON Configuration Configuring RMON Alarms and Events Page Collecting Group History Statistics on an Interface Collecting Group Ethernet Statistics on an Interface Displaying RMON Status Configuring System Message Logging Understanding System Message Logging Configuring System Message Logging System Log Message Format Page Default System Message Logging Configuration Disabling Message Logging Setting the Message Display Destination Device Synchronizing Log Messages Page Enabling and Disabling Time Stamps on Log Messages Enabling and Disabling Sequence Numbers in Log Messages Defining the Message Severity Level Limiting Syslog Messages Sent to the History Table and to SNMP Enabling the Configuration-Change Logger Configuring UNIX Syslog Servers Logging Messages to a UNIX Syslog Daemon Configuring the UNIX System Logging Facility Displaying the Logging Configuration Configuring SNMP Understanding SNMP SNMP Versions SNMP Manager Functions SNMP Agent Functions SNMP Community Strings Using SNMP to Access MIB Variables SNMP Notifications SNMP ifIndex MIB Object Values Configuring SNMP Default SNMP Configuration SNMP Configuration Guidelines Disabling the SNMP Agent Configuring Community Strings Page Configuring SNMP Groups and Users Page Configuring SNMP Notifications Page Page Setting the Agent Contact and Location Information Limiting TFTP Servers Used Through SNMP SNMP Examples Displaying SNMP Status Page Configuring Network Security with ACLs Understanding ACLs Supported ACLs Port ACLs Router ACLs VLAN Maps Handling Fragmented and Unfragmented Traffic ACLs and Switch Stacks Configuring IPv4 ACLs Creating Standard and Extended IPv4 ACLs Access List Numbers ACL Logging Creating a Numbered Standard ACL Creating a Numbered Extended ACL Page Page Page Resequencing ACEs in an ACL Creating Named Standard and Extended ACLs Page Using Time Ranges with ACLs Page Including Comments in ACLs Applying an IPv4 ACL to a Terminal Line Applying an IPv4 ACL to an Interface Page Hardware and Software Treatment of IP ACLs IPv4 ACL Configuration Examples Page Numbered ACLs Extended ACLs Named ACLs Time Range Applied to an IP ACL Commented IP ACL Entries ACL Logging Creating Named MAC Extended ACLs Applying a MAC ACL to a Layer 2 Interface Configuring VLAN Maps VLAN Map Configuration Guidelines Creating a VLAN Map Examples of ACLs and VLAN Maps Example 1 Example 2 Example 3 Example 4 Applying a VLAN Map to a VLAN Using VLAN Maps in Your Network Wiring Closet Configuration Denying Access to a Server on Anothera VLAN Using VLAN Maps with Router ACLs VLAN Maps and Router ACL Configuration Guidelines Examples of Router ACLs and VLAN Maps Applied to VLANs ACLs and Switched Packets ACLs and Bridged Packets 34-39 ACLs and Routed Packets ACLs and Multicast Packets Displaying IPv4 ACL Configuration Page Page Configuring IPv6 ACLs Understanding IPv6 ACLs Supported ACL Features IPv6 ACL Limitations IPv6 ACLs and Switch Stacks Configuring IPv6 ACLs Default IPv6 ACL Configuration Interaction with Other Features and Switches Creating IPv6 ACLs Page Page Applying an IPv6 ACL to an Interface Displaying IPv6 ACLs Page Configuring QoS Understanding QoS Basic QoS Model Page Classification 36-6 Classification Based on QoS ACLs Classification Based on Class Maps and Policy Maps Policing and Marking Policing on Physical Ports Policing on SVIs Page Mapping Tables 36-13 Queueing and Scheduling Overview Weighted Tail Drop SRR Shaping and Sharing Queueing and Scheduling on Ingress Queues Page WTD Thresholds Buffer and Bandwidth Allocation Priority Queueing 36-18 Queueing and Scheduling on Egress Queues Figure 36-11 and Figure 36-12 show the queueing and scheduling flowcharts for egress ports. Page Buffer and Memory Allocation WTD Thresholds Shaped or Shared Mode Packet Modification Configuring Auto-QoS Generated Auto-QoS Configuration Page 36-25 The switch automatically maps DSCP values to an ingress queue and to a threshold ID. The switch automatically maps DSCP values to an egress queue and to a threshold ID. Table36-5 Generated Auto-QoS Configuration (continued) Description Automatically Generated Command Page Effects of Auto-QoS on the Configuration Auto-QoS Configuration Guidelines Enabling Auto-QoS for VoIP Page 36-30 Auto-QoS Configuration Example Page Displaying Auto-QoS Information Configuring Standard QoS Default Standard QoS Configuration Default Ingress Queue Configuration Default Egress Queue Configuration Default Mapping Table Configuration Standard QoS Configuration Guidelines QoS ACL Guidelines Applying QoS on Interfaces Policing Guidelines General QoS Guidelines Enabling QoS Globally Enabling VLAN-Based QoS on Physical Ports Configuring Classification Using Port Trust States Configuring the Trust State on Ports within the QoS Domain Page Configuring the CoS Value for an Interface Configuring a Trusted Boundary to Ensure Port Security Enabling DSCP Transparency Mode Configuring the DSCP Trust State on a Port Bordering Another QoS Domain Page Configuring a QoS Policy Classifying Traffic by Using ACLs Page Page Classifying Traffic by Using Class Maps Page Classifying, Policing, and Marking Traffic on Physical Ports by Using Policy Maps Page Page Page Classifying, Policing, and Marking Traffic on SVIs by Using Hierarchical Policy Maps Page Page Page Page Page Classifying, Policing, and Marking Traffic by Using Aggregate Policers Page Configuring DSCP Maps Configuring the CoS-to-DSCP Map Configuring the IP-Precedence-to-DSCP Map Configuring the Policed-DSCP Map Configuring the DSCP-to-CoS Map Configuring the DSCP-to-DSCP-Mutation Map Page Configuring Ingress Queue Characteristics Mapping DSCP or CoS Values to an Ingress Queue and Setting WTD Thresholds Allocating Buffer Space Between the Ingress Queues Allocating Bandwidth Between the Ingress Queues Configuring the Ingress Priority Queue Configuring Egress Queue Characteristics Configuration Guidelines Allocating Buffer Space to and Setting WTD Thresholds for an Egress Queue-Set Page Mapping DSCP or CoS Values to an Egress Queue and to a Threshold ID Page Configuring SRR Shaped Weights on Egress Queues Configuring SRR Shared Weights on Egress Queues Configuring the Egress Expedite Queue Limiting the Bandwidth on an Egress Interface Displaying Standard QoS Information Page Configuring EtherChannels and Link-State Tracking Understanding EtherChannels EtherChannel Overview Page Port-Channel Interfaces Port Aggregation Protocol PAgP Modes PAgP Interaction with Other Features Link Aggregation Control Protocol LACP Modes LACP Interaction with Other Features EtherChannel On Mode Load-Balancing and Forwarding Methods Page EtherChannel and Switch Stacks Configuring EtherChannels Default EtherChannel Configuration EtherChannel Configuration Guidelines Configuring Layer 2 EtherChannels Page Configuring Layer 3 EtherChannels Creating Port-Channel Logical Interfaces Configuring the Physical Interfaces Page Configuring EtherChannel Load-Balancing Configuring the PAgP Learn Method and Priority Configuring LACP Hot-Standby Ports Configuring the LACP System Priority Configuring the LACP Port Priority Displaying EtherChannel, PAgP, and LACP Status Understanding Link-State Tracking Page 37-25 Configuring Link-State Tracking These sections describe how to configure link-state tracking ports: Default Link-State Tracking Configuration Link-State Tracking Configuration Guidelines Configuring Link-State Tracking Displaying Link-State Tracking Status Page Configuring IP Unicast Routing Understanding IP Routing Types of Routing IP Routing and Switch Stacks Page Steps for Configuring Routing Configuring IP Addressing Default Addressing Configuration Assigning IP Addresses to Network Interfaces Use of Subnet Zero Classless Routing Configuring Address Resolution Methods Define a Static ARP Cache Set ARP Encapsulation Enable Proxy ARP Routing Assistance When IP Routing is Disabled Proxy ARP Default Gateway ICMP Router Discovery Protocol (IRDP) Configuring Broadcast Packet Handling Enabling Directed Broadcast-to-Physical Broadcast Translation Forwarding UDP Broadcast Packets and Protocols Establishing an IP Broadcast Address Flooding IP Broadcasts Monitoring and Maintaining IP Addressing Enabling IP Unicast Routing Configuring RIP Default RIP Configuration Configuring Basic RIP Parameters Page Configuring RIP Authentication Configuring Summary Addresses and Split Horizon Configuring Split Horizon Configuring OSPF Default OSPF Configuration OSPF Nonstop Forwarding OSPF NSF Awareness OSPF NSF Capability Configuring Basic OSPF Parameters Configuring OSPF Interfaces Page Configuring OSPF Area Parameters Configuring Other OSPF Parameters Page Changing LSA Group Pacing Configuring a Loopback Interface Monitoring OSPF Configuring EIGRP Page Default EIGRP Configuration EIGRP Nonstop Forwarding EIGRP NSF Awareness EIGRP NSF Capability Configuring Basic EIGRP Parameters Configuring EIGRP Interfaces Configuring EIGRP Route Authentication EIGRP Stub Routing Monitoring and Maintaining EIGRP Configuring BGP Page Default BGP Configuration Page Nonstop Forwarding Awareness Enabling BGP Routing Page Managing Routing Policy Changes Page Configuring BGP Decision Attributes Page Configuring BGP Filtering with Route Maps Configuring BGP Filtering by Neighbor Page Configuring Prefix Lists for BGP Filtering Configuring BGP Community Filtering Configuring BGP Neighbors and Peer Groups Page Configuring Aggregate Addresses Configuring Routing Domain Confederations Configuring BGP Route Reflectors Configuring Route Dampening Monitoring and Maintaining BGP Configuring Multi-VRF CE Understanding Multi-VRF CE Page Default Multi-VRF CE Configuration Multi-VRF CE Configuration Guidelines Configuring VRFs Configuring a VPN Routing Session Configuring BGP PE to CE Routing Sessions Multi-VRF CE Configuration Example 38-71 38-72 Configuring Switch A On Switch A, enable routing and configure VRF. 38-73 Configure OSPF routing in VPN1 and VPN2. Configure BGP for CE to PE routing. Configuring Switch D Switch D belongs to VPN 1. Configure the connection to Switch A by using these commands. 38-74 Configuring Switch F Switch F belongs to VPN 2. Configure the connection to Switch A by u sing these commands. Configuring the PE Switch B Displaying Multi-VRF CE Status Configuring Unicast Reverse Path Forwarding Configuring Protocol-Independent Features Configuring Distributed Cisco Express Forwarding Configuring the Number of Equal-Cost Routing Paths Configuring Static Unicast Routes Specifying Default Routes and Networks Using Route Maps to Redistribute Routing Information Page Page Configuring Policy-Based Routing PBR Configuration Guidelines Enabling PBR Page Filtering Routing Information Setting Passive Interfaces Controlling Advertising and Processing in Routing Updates Filtering Sources of Routing Information Managing Authentication Keys Monitoring and Maintaining the IP Network Page Page Configuring IPv6 Unicast Routing Understanding IPv6 IPv6 Addresses Supported IPv6 Unicast Routing Features 128-Bit Wide Unicast Addresses DNS for IPv6 Path MTU Discovery for IPv6 Unicast ICMPv6 Neighbor Discovery IPv6 Stateless Autoconfiguration and Duplicate Address Detection IPv6 Applications Dual IPv4 and IPv6 Protocol Stacks Unsupported IPv6 Unicast Routing Features Limitations IPv6 and Switch Stacks Page SDM Templates Dual IPv4-and IPv6 SDM Templates Configuring IPv6 Default IPv6 Configuration Configuring IPv6 Addressing and Enabling IPv6 Routing Page Configuring IPv4 and IPv6 Protocol Stacks Page Configuring IPv6 ICMP Rate Limiting Configuring CEF and dCEF for IPv6 Configuring Static Routing for IPv6 Page Configuring RIP for IPv6 Page Configuring OSPF for IPv6 Page Displaying IPv6 39-23 This is an example of the output from the show ipv6 cef privileged EXEC command: This is an example of the output from the show ipv6 protocols privileged EXEC command : This is an example of the output from the show ipv6 rip privileged EXEC command: 39-24 This is an example of the output from the show ipv6 neighbor privileged EXEC command: This is an example of the output from the show ipv6 static privileged EXEC command: This is an example of the output from the show ipv6 route privileged EXEC command: This is an example of the output from the show ipv6 traffic privileged EXEC command. 39-25 Page Configuring HSRP and Enhanced Object Tracking Understanding HSRP Page Multiple HSRP HSRP and Switch Stacks Configuring HSRP Default HSRP Configuration HSRP Configuration Guidelines Enabling HSRP Page Configuring HSRP Priority Page Configuring MHSRP Configuring HSRP Authentication and Timers Page Enabling HSRP Support for ICMP Redirect Messages Configuring HSRP Groups and Clustering Displaying HSRP Configurations Configuring Enhanced Object Tracking Understanding Enhanced Object Tracking Configuring Enhanced Object Tracking Features Tracking Interface Line-Protocol or IP Routing State Configuring a Tracked List Boolean Expression Weight Threshold Percentage Threshold Configuring HSRP Object Tracking Configuring Other Tracking Characteristics Configuring Web Cache Services By Using WCCP Understanding WCCP WCCP Message Exchange WCCP Negotiation MD5 Security Packet Redirection and Service Groups WCCP and Switch Stacks Unsupported WCCP Features Configuring WCCP Default WCCP Configuration WCCP Configuration Guidelines Enabling the Web Cache Service Page Page Monitoring and Maintaining WCCP Page Configuring IP Multicast Routing Understanding Ciscos Implementation of IP Multicast Routing Understanding IGMP IGMP Version 1 IGMP Version 2 Understanding PIM PIM Versions PIM Modes PIM DM PIM-SM PIM Stub Routing Auto-RP Bootstrap Router Multicast Forwarding and Reverse Path Check Understanding DVMRP Understanding CGMP Multicast Routing and Switch Stacks Configuring IP Multicast Routing Default Multicast Routing Configuration Multicast Routing Configuration Guidelines PIMv1 and PIMv2 Interoperability Auto-RP and BSR Configuration Guidelines Configuring Basic Multicast Routing Configuring PIM Stub Routing Configuring a Rendezvous Point Manually Assigning an RP to Multicast Groups Page Configuring Auto-RP Setting up Auto-RP in a New Internetwork Adding Auto-RP to an Existing Sparse-Mode Cloud Page Preventing Join Messages to False RPs Filtering Incoming RP Announcement Messages Page Configuring PIMv2 BSR Defining the PIM Domain Border Defining the IP Multicast Boundary Configuring Candidate BSRs Configuring Candidate RPs Using Auto-RP and a BSR Monitoring the RP Mapping Information Troubleshooting PIMv1 and PIMv2 Interoperability Problems Configuring Advanced PIM Features Understanding PIM Shared Tree and Source Tree Page Delaying the Use of PIM Shortest-Path Tree Modifying the PIM Router-Query Message Interval Configuring Optional IGMP Features Default IGMP Configuration Configuring the Switch as a Member of a Group Controlling Access to IP Multicast Groups Changing the IGMP Version Modifying the IGMP Host-Query Message Interval Changing the IGMP Query Timeout for IGMPv2 Changing the Maximum Query Response Time for IGMPv2 Configuring the Switch as a Statically Connected Member Configuring Optional Multicast Routing Features Enabling CGMP Server Support Configuring sdr Listener Support Enabling sdr Listener Support Limiting How Long an sdr Cache Entry Exists Configuring an IP Multicast Boundary Configuring Basic DVMRP Interoperability Features Configuring DVMRP Interoperability Page Configuring a DVMRP Tunnel Advertising Network 0.0.0.0 to DVMRP Neighbors Responding to mrinfo Requests Configuring Advanced DVMRP Interoperability Features Enabling DVMRP Unicast Routing Rejecting a DVMRP Nonpruning Neighbor Page Controlling Route Exchanges Limiting the Number of DVMRP Routes Advertised Changing the DVMRP Route Threshold Configuring a DVMRP Summary Address 42-49 Disabling DVMRP Autosummarization Adding a Metric Offset to the DVMRP Route Monitoring and Maintaining IP Multicast Routing Clearing Caches, Tables, and Databases Displaying System and Network Statistics Monitoring IP Multicast Routing Page Configuring MSDP Understanding MSDP MSDP Operation MSDP Benefits Configuring MSDP Default MSDP Configuration Configuring a Default MSDP Peer Page Caching Source-Active State Page Requesting Source Information from an MSDP Peer Controlling Source Information that Your Switch Originates Redistributing Sources Page Filtering Source-Active Request Messages Controlling Source Information that Your Switch Forwards Using a Filter Page Using TTL to Limit the Multicast Data Sent in SA Messages Controlling Source Information that Your Switch Receives Page Configuring an MSDP Mesh Group Shutting Down an MSDP Peer Including a Bordering PIM Dense-Mode Region in MSDP Configuring an Originating Address other than the RP Address Monitoring and Maintaining MSDP Page Configuring Fallback Bridging Understanding Fallback Bridging Fallback Bridging Overview Page Fallback Bridging and Switch Stacks Configuring Fallback Bridging Default Fallback Bridging Configuration Fallback Bridging Configuration Guidelines Creating a Bridge Group Page Adjusting Spanning-Tree Parameters Changing the VLAN-Bridge Spanning-Tree Priority Changing the Interface Priority Assigning a Path Cost Adjusting BPDU Intervals Adjusting the Interval between Hello BPDUs Changing the Forward-Delay Interval Changing the Maximum-Idle Interval Disabling the Spanning Tree on an Interface Monitoring and Maintaining Fallback Bridging Page Troubleshooting Recovering from a Software Failure Recovering from a Lost or Forgotten Password Page Procedure with Password Recovery Enabled Page Procedure with Password Recovery Disabled Preventing Switch Stack Problems Recovering from a Command Switch Failure Replacing a Failed Command Switch with a Cluster Member Replacing a Failed Command Switch with Another Switch Page Recovering from Lost Cluster Member Connectivity Preventing Autonegotiation Mismatches Troubleshooting Power over Ethernet Switch Ports Disabled Port Caused by Power Loss Disabled Port Caused by False Link Up SFP Module Security and Identification Monitoring SFP Module Status Monitoring Temperature Using Ping Understanding Ping Executing Ping Using Layer 2 Traceroute Understanding Layer 2 Traceroute Usage Guidelines Displaying the Physical Path Using IP Traceroute Understanding IP Traceroute Executing IP Traceroute Using TDR Understanding TDR Running TDR and Displaying the Results Using Debug Commands Enabling Debugging on a Specific Feature Enabling All-System Diagnostics Redirecting Debug and Error Message Output Using the show platform forward Command 45-24 Using the crashinfo Files Basic crashinfo Files Extended crashinfo Files Using On-Board Failure Logging Understanding OBFL Configuring OBFL Displaying OBFL Information Configuring Online Diagnostics Understanding Online Diagnostics Configuring Online Diagnostics Scheduling Online Diagnostics Configuring Health-Monitoring Diagnostics Page Running Online Diagnostic Tests Starting Online Diagnostic Tests Displaying Online Diagnostic Tests and Test Results A Supported MIBs MIB List Page Page Using FTP to Access the MIB Files B Working with the Cisco IOS File System, Configuration Files, and Software Images Working with the Flash File System Displaying Available File Systems Setting the Default File System Displaying Information about Files on a File System Changing Directories and Displaying the Working Directory Creating and Removing Directories Copying Files Deleting Files Creating, Displaying, and Extracting Files Page Page Working with Configuration Files Guidelines for Creating and Using Configuration Files Configuration File Types and Location Creating a Configuration File By Using a Text Editor Copying Configuration Files By Using TFTP Preparing to Download or Upload a Configuration File By Using TFTP Downloading the Configuration File By Using TFTP Uploading the Configuration File By Using TFTP Copying Configuration Files By Using FTP Preparing to Download or Upload a Configuration File By Using FTP Downloading a Configuration File By Using FTP Uploading a Configuration File By Using FTP Copying Configuration Files By Using RCP Preparing to Download or Upload a Configuration File By Using RCP Downloading a Configuration File By Using RCP Uploading a Configuration File By Using RCP Clearing Configuration Information Clearing the Startup Configuration File Deleting a Stored Configuration File Working with Software Images Image Location on the Switch File Format of Images on a Server or Cisco.com Copying Image Files By Using TFTP Preparing to Download or Upload an Image File By Using TFTP Downloading an Image File By Using TFTP Page Uploading an Image File By Using TFTP Copying Image Files By Using FTP Preparing to Download or Upload an Image File By Using FTP Downloading an Image File By Using FTP Page Uploading an Image File By Using FTP Copying Image Files By Using RCP Preparing to Download or Upload an Image File By Using RCP Downloading an Image File By Using RCP Page Uploading an Image File By Using RCP Copying an Image File from One Stack Member to Another Page C Unsupported Commands in Cisco IOS Release 12.2(37)SE Access Control Lists Unsupported Route-Map Configuration Commands Archive Commands ARP Commands Boot Loader Commands Debug Commands Fallback Bridging HSRP IGMP Snooping Commands Interface Commands IP Multicast Routing Page IP Unicast Routing Unsupported Privileged EXEC or User EXEC Commands Unsupported BGP Router Configuration Commands Unsupported VPN Configuration Commands Unsupported Route Map Commands MAC Address Commands Miscellaneous MSDP NetFlow Commands Network Address Translation (NAT) Commands QoS RADIUS SNMP Spanning Tree VLAN VTP INDEX Numerics A Page Page B C Page Page Page D Page Page Page Page E Page F G H I Page Page Page Page Page Page J K L Page M Page Page Page N Page O P Page Page Page Page Q Page R Page Page S Page Page Page Page Page Page Page T Page U V Page Page W X

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