Software Configuration Guide
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... through Non-CDP-Capable and Noncluster-Capable Devices 7-7 Discovery through the Same Management VLAN 7-8 Discovery through Different Management VLANs 7-9 Discovery of Newly Installed Switches 7-10 HSRP and Standby Command Switches 7-11 Virtual IP Addresses 7-12 Other Considerations for Cluster Standby Groups 7-12 Automatic... SNMP Community Strings 7-15 TACACS+ and RADIUS 7-16 Access Modes in CMS 7-16 Management VLAN 7-16 LRE Profiles 7-17 Availability of Switch-Specific Features in Switch Clusters 7-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide vii
... through Non-CDP-Capable and Noncluster-Capable Devices 7-7 Discovery through the Same Management VLAN 7-8 Discovery through Different Management VLANs 7-9 Discovery of Newly Installed Switches 7-10 HSRP and Standby Command Switches 7-11 Virtual IP Addresses 7-12 Other Considerations for Cluster Standby Groups 7-12 Automatic... SNMP Community Strings 7-15 TACACS+ and RADIUS 7-16 Access Modes in CMS 7-16 Management VLAN 7-16 LRE Profiles 7-17 Availability of Switch-Specific Features in Switch Clusters 7-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide vii
Software Configuration Guide
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... 9 C H A P T E R Managing the MAC Address Table 8-21 Building the Address Table 8-22 MAC Addresses and VLANs 8-22 Default MAC Address Table Configuration 8-23 Changing the Address Aging Time 8-23 Removing Dynamic Address Entries 8-24 Configuring MAC Address ...14 Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 9-16 Starting TACACS+ Accounting 9-17 Displaying the TACACS+ Configuration 9-17 Controlling Switch Access with RADIUS 9-18 Understanding RADIUS 9-18 RADIUS Operation 9-19 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide ix
... 9 C H A P T E R Managing the MAC Address Table 8-21 Building the Address Table 8-22 MAC Addresses and VLANs 8-22 Default MAC Address Table Configuration 8-23 Changing the Address Aging Time 8-23 Removing Dynamic Address Entries 8-24 Configuring MAC Address ...14 Configuring TACACS+ Authorization for Privileged EXEC Access and Network Services 9-16 Starting TACACS+ Accounting 9-17 Displaying the TACACS+ Configuration 9-17 Controlling Switch Access with RADIUS 9-18 Understanding RADIUS 9-18 RADIUS Operation 9-19 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide ix
Software Configuration Guide
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... and Supported Versions 9-33 Limitations 9-34 Configuring SSH 9-34 Configuration Guidelines 9-34 Cryptographic Software Image Guidelines 9-35 Setting Up the Switch to Run SSH 9-35 Configuring the SSH Server 9-36 Displaying the SSH Configuration and Status 9-37 Configuring 802.1x Port-Based ... with VLAN Assignment 10-7 Using 802.1x with Guest VLAN 10-8 Configuring 802.1x Authentication 10-9 Default 802.1x Configuration 10-9 802.1x Configuration Guidelines 10-10 Upgrading from a Previous Software Release 10-11 Enabling 802.1x Authentication 10-11 Catalyst 2950 and Catalyst 2955 Switch Software ...
... and Supported Versions 9-33 Limitations 9-34 Configuring SSH 9-34 Configuration Guidelines 9-34 Cryptographic Software Image Guidelines 9-35 Setting Up the Switch to Run SSH 9-35 Configuring the SSH Server 9-36 Displaying the SSH Configuration and Status 9-37 Configuring 802.1x Port-Based ... with VLAN Assignment 10-7 Using 802.1x with Guest VLAN 10-8 Configuring 802.1x Authentication 10-9 Default 802.1x Configuration 10-9 802.1x Configuration Guidelines 10-10 Upgrading from a Previous Software Release 10-11 Enabling 802.1x Authentication 10-11 Catalyst 2950 and Catalyst 2955 Switch Software ...
Software Configuration Guide
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...-20 Displaying 802.1x Statistics and Status 10-21 Configuring Interface Characteristics 11-1 Understanding Interface Types 11-1 Access Ports 11-2 Trunk Ports 11-2 Port-Based VLANs 11-3 EtherChannel Port Groups 11-3 Connecting Interfaces 11-4 Using the Interface Command 11-4 Procedures for Configuring Interfaces 11-5 Configuring a Range of Interfaces 11-5 Configuring and... Interface and Controller Status 11-15 Clearing and Resetting Interfaces and Counters 11-16 Shutting Down and Restarting the Interface 11-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xi
...-20 Displaying 802.1x Statistics and Status 10-21 Configuring Interface Characteristics 11-1 Understanding Interface Types 11-1 Access Ports 11-2 Trunk Ports 11-2 Port-Based VLANs 11-3 EtherChannel Port Groups 11-3 Connecting Interfaces 11-4 Using the Interface Command 11-4 Procedures for Configuring Interfaces 11-5 Configuring a Range of Interfaces 11-5 Configuring and... Interface and Controller Status 11-15 Clearing and Resetting Interfaces and Counters 11-16 Shutting Down and Restarting the Interface 11-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xi
Software Configuration Guide
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Contents 15 C H A P T E R Configuring the Switch Priority of a VLAN 14-20 Configuring Spanning-Tree Timers 14-21 Configuring the Hello Time 14-21 Configuring the Forwarding-Delay Time for a VLAN 14-22 Configuring the Maximum-Aging Time for a VLAN 14-22 Configuring Spanning Tree for Use in a Cascaded Stack...Path Cost 15-18 Configuring the Switch Priority 15-19 Configuring the Hello Time 15-19 Configuring the Forwarding-Delay Time 15-20 Configuring the Maximum-Aging Time 15-21 Configuring the Maximum-Hop Count 15-21 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xiv 78-...
Contents 15 C H A P T E R Configuring the Switch Priority of a VLAN 14-20 Configuring Spanning-Tree Timers 14-21 Configuring the Hello Time 14-21 Configuring the Forwarding-Delay Time for a VLAN 14-22 Configuring the Maximum-Aging Time for a VLAN 14-22 Configuring Spanning Tree for Use in a Cascaded Stack...Path Cost 15-18 Configuring the Switch Priority 15-19 Configuring the Hello Time 15-19 Configuring the Forwarding-Delay Time 15-20 Configuring the Maximum-Aging Time 15-21 Configuring the Maximum-Hop Count 15-21 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xiv 78-...
Software Configuration Guide
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... 16-16 Enabling EtherChannel Guard 16-18 Enabling Root Guard 16-19 Enabling Loop Guard 16-19 Displaying the Spanning-Tree Status 16-20 Configuring VLANs 17-1 Understanding VLANs 17-1 Supported VLANs 17-2 VLAN Port Membership Modes 17-3 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xv
... 16-16 Enabling EtherChannel Guard 16-18 Enabling Root Guard 16-19 Enabling Loop Guard 16-19 Displaying the Spanning-Tree Status 16-20 Configuring VLANs 17-1 Understanding VLANs 17-1 Supported VLANs 17-2 VLAN Port Membership Modes 17-3 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xv
Software Configuration Guide
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... Priorities 17-22 Load Sharing Using STP Path Cost 17-24 Configuring VMPS 17-25 Understanding VMPS 17-25 Dynamic Port VLAN Membership 17-26 VMPS Database Configuration File 17-26 Default VMPS Client Configuration 17-27 VMPS Configuration Guidelines 17-27 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xvi 78-11380-10
... Priorities 17-22 Load Sharing Using STP Path Cost 17-24 Configuring VMPS 17-25 Understanding VMPS 17-25 Dynamic Port VLAN Membership 17-26 VMPS Database Configuration File 17-26 Default VMPS Client Configuration 17-27 VMPS Configuration Guidelines 17-27 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xvi 78-11380-10
Software Configuration Guide
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...Pruning 18-4 Configuring VTP 18-6 Default VTP Configuration 18-6 VTP Configuration Options 18-7 VTP Configuration in Global Configuration Mode 18-7 VTP Configuration in VLAN Configuration Mode 18-7 VTP Configuration Guidelines 18-8 Domain Names 18-8 Passwords 18-8 Upgrading from Previous Software Releases 18-8 VTP Version 18-9 Configuration... VTP (VTP Transparent Mode) 18-12 Enabling VTP Version 2 18-13 Enabling VTP Pruning 18-14 Adding a VTP Client Switch to a VTP Domain 18-14 Monitoring VTP 18-16 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xvii
...Pruning 18-4 Configuring VTP 18-6 Default VTP Configuration 18-6 VTP Configuration Options 18-7 VTP Configuration in Global Configuration Mode 18-7 VTP Configuration in VLAN Configuration Mode 18-7 VTP Configuration Guidelines 18-8 Domain Names 18-8 Passwords 18-8 Upgrading from Previous Software Releases 18-8 VTP Version 18-9 Configuration... VTP (VTP Transparent Mode) 18-12 Enabling VTP Version 2 18-13 Enabling VTP Pruning 18-14 Adding a VTP Client Switch to a VTP Domain 18-14 Monitoring VTP 18-16 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xvii
Software Configuration Guide
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... P T E R 20 C H A P T E R 21 C H A P T E R Configuring Voice VLAN 19-1 Understanding Voice VLAN 19-1 Configuring Voice VLAN 19-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to Carry Voice Traffic ...Multicast Group 21-3 Leaving a Multicast Group 21-4 Immediate-Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
... P T E R 20 C H A P T E R 21 C H A P T E R Configuring Voice VLAN 19-1 Understanding Voice VLAN 19-1 Configuring Voice VLAN 19-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to Carry Voice Traffic ...Multicast Group 21-3 Leaving a Multicast Group 21-4 Immediate-Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
Software Configuration Guide
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...-10 21-10 Disabling IP Multicast-Source-Only Learning 21-11 Configuring the Aging Time 21-12 Displaying IGMP Snooping Information 21-13 Understanding Multicast VLAN Registration 21-14 Using MVR in a Multicast Television Application 21-15 Configuring MVR 21-17 Default MVR Configuration 21-17 MVR Configuration Guidelines and Limitations... 22-4 Configuring Protected Ports 22-4 Configuring Port Blocking 22-5 Blocking Flooded Traffic on an Interface 22-5 Resuming Normal Forwarding on a Port 22-6 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xix
...-10 21-10 Disabling IP Multicast-Source-Only Learning 21-11 Configuring the Aging Time 21-12 Displaying IGMP Snooping Information 21-13 Understanding Multicast VLAN Registration 21-14 Using MVR in a Multicast Television Application 21-15 Configuring MVR 21-17 Default MVR Configuration 21-17 MVR Configuration Guidelines and Limitations... 22-4 Configuring Protected Ports 22-4 Configuring Port Blocking 22-5 Blocking Flooded Traffic on an Interface 22-5 Resuming Normal Forwarding on a Port 22-6 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xix
Software Configuration Guide
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... Session and Enabling Ingress Traffic 25-9 Removing Ports from a SPAN Session 25-11 Configuring RSPAN 25-12 RSPAN Configuration Guidelines 25-12 Configuring a VLAN as an RSPAN VLAN 25-13 Creating an RSPAN Source Session 25-13 Creating an RSPAN Destination Session 25-15 Removing Ports from an RSPAN Session 25-16...-2 Default RMON Configuration 26-3 Configuring RMON Alarms and Events 26-3 Configuring RMON Collection on an Interface 26-5 Displaying RMON Status 26-6 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xxi
... Session and Enabling Ingress Traffic 25-9 Removing Ports from a SPAN Session 25-11 Configuring RSPAN 25-12 RSPAN Configuration Guidelines 25-12 Configuring a VLAN as an RSPAN VLAN 25-13 Creating an RSPAN Source Session 25-13 Creating an RSPAN Destination Session 25-15 Removing Ports from an RSPAN Session 25-16...-2 Default RMON Configuration 26-3 Configuring RMON Alarms and Events 26-3 Configuring RMON Collection on an Interface 26-5 Displaying RMON Status 26-6 Contents 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xxi
Software Configuration Guide
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...by the EI. For information about planning for, creating, and maintaining switch clusters. The Catalyst 2950 switch is most easily performed through CMS, this guide, you should have experience working with the Cisco IOS and be familiar with other documents for using the browser setup ... procedures. The EI provides a richer set of switches that you need to as the switches. For the cluster commands, refer to the temperature, power supply conditions, and status of service (QoS) features, extended-range VLANs, Remote Switched Port Analyzer (RSPAN), and unicast MAC address filtering...
...by the EI. For information about planning for, creating, and maintaining switch clusters. The Catalyst 2950 switch is most easily performed through CMS, this guide, you should have experience working with the Cisco IOS and be familiar with other documents for using the browser setup ... procedures. The EI provides a richer set of switches that you need to as the switches. For the cluster commands, refer to the temperature, power supply conditions, and status of service (QoS) features, extended-range VLANs, Remote Switched Port Analyzer (RSPAN), and unicast MAC address filtering...
Software Configuration Guide
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... Cisco Intelligence Engine 2100 (IE2100) Series Cisco Networking Services (CNS) embedded agents for automating switch management, configuration storage and delivery (available only with the EI) • DHCP-based autoconfiguration for automatically configuring the switch during DHCP-based autoconfiguration Catalyst 2950 and Catalyst 2955 Switch ... per multicast router query to the multicast devices (supported only for IGMPv1 or IGMPv2 queries) • Multicast VLAN registration (MVR) to continuously send multicast streams in full-duplex mode • Fast EtherChannel and Gigabit EtherChannel...
... Cisco Intelligence Engine 2100 (IE2100) Series Cisco Networking Services (CNS) embedded agents for automating switch management, configuration storage and delivery (available only with the EI) • DHCP-based autoconfiguration for automatically configuring the switch during DHCP-based autoconfiguration Catalyst 2950 and Catalyst 2955 Switch ... per multicast router query to the multicast devices (supported only for IGMPv1 or IGMPv2 queries) • Multicast VLAN registration (MVR) to continuously send multicast streams in full-duplex mode • Fast EtherChannel and Gigabit EtherChannel...
Software Configuration Guide
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...-tree plus (PVST+) for balancing load across VLANs - Rapid PVST+ for balancing load across VLANs - Redundancy • HSRP for command-switch redundancy • UniDirectional Link Detection (UDLD) on all switches from an external source • Directed unicast requests to a TFTP ...available only with the EI) • Cisco Discovery Protocol (CDP) versions 1 and 2 for network topology discovery and mapping between redundant uplinks, including Gigabit uplinks and cross-stack Gigabit uplinks Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-4 78-11380-10 Features...
...-tree plus (PVST+) for balancing load across VLANs - Rapid PVST+ for balancing load across VLANs - Redundancy • HSRP for command-switch redundancy • UniDirectional Link Detection (UDLD) on all switches from an external source • Directed unicast requests to a TFTP ...available only with the EI) • Cisco Discovery Protocol (CDP) versions 1 and 2 for network topology discovery and mapping between redundant uplinks, including Gigabit uplinks and cross-stack Gigabit uplinks Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-4 78-11380-10 Features...
Software Configuration Guide
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... Note The Catalyst 2950-12, Catalyst 2950-24, Catalyst 2950SX-24, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI switches support only 64 port-based VLANs. • The switch supports up to 4094 VLAN IDs to allow... service provider networks to be used • Voice VLAN for creating subnets for eliminating the forwarding delay by enabling a port to immediately transition from Cisco IP Phones • VLAN...
... Note The Catalyst 2950-12, Catalyst 2950-24, Catalyst 2950SX-24, Catalyst 2950SX-48-SI, and Catalyst 2950T-48-SI switches support only 64 port-based VLANs. • The switch supports up to 4094 VLAN IDs to allow... service provider networks to be used • Voice VLAN for creating subnets for eliminating the forwarding delay by enabling a port to immediately transition from Cisco IP Phones • VLAN...
Software Configuration Guide
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... the Cisco 585 LRE CPE - Switch LRE ports and the Ethernet ports on Catalyst 2950ST-24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-7 Chapter 1 Overview Features 78-11380-10 Monitoring • Switch LEDs that provide visual port and switch status • Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) for traffic monitoring on any port or VLAN...
... the Cisco 585 LRE CPE - Switch LRE ports and the Ethernet ports on Catalyst 2950ST-24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-7 Chapter 1 Overview Features 78-11380-10 Monitoring • Switch LEDs that provide visual port and switch status • Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN) for traffic monitoring on any port or VLAN...
Software Configuration Guide
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..., see Chapter 7, "Clustering Switches." 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-9 By using switch clusters and CMS, you can: • Manage and monitor interconnected Catalyst switches (refer to the release notes for a list of supported switches), regardless of their geographic proximity and interconnection media, including Ethernet, Fast Ethernet, Fast EtherChannel, Cisco GigaStack GBIC, Gigabit Ethernet...
..., see Chapter 7, "Clustering Switches." 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-9 By using switch clusters and CMS, you can: • Manage and monitor interconnected Catalyst switches (refer to the release notes for a list of supported switches), regardless of their geographic proximity and interconnection media, including Ethernet, Fast Ethernet, Fast EtherChannel, Cisco GigaStack GBIC, Gigabit Ethernet...
Software Configuration Guide
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...your network to increase the bandwidth available to your network users and the relative priority of the network applications they use VLANs and IP subnets to place the network resources in the same logical network as the users who access those resources most... "Service-Provider Central-Office Configuration" section on page 1-18 • "Large Campus Configuration" section on page 1-19 • "Multidwelling Network Using Catalyst 2950 Switches" section on page 1-20 • "Long-Distance, High-Bandwidth Transport Configuration" section on a single network segment and a growing number of new ...
...your network to increase the bandwidth available to your network users and the relative priority of the network applications they use VLANs and IP subnets to place the network resources in the same logical network as the users who access those resources most... "Service-Provider Central-Office Configuration" section on page 1-18 • "Large Campus Configuration" section on page 1-19 • "Multidwelling Network Using Catalyst 2950 Switches" section on page 1-20 • "Long-Distance, High-Bandwidth Transport Configuration" section on a single network segment and a growing number of new ...
Software Configuration Guide
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...on the uplink ports so that support at higher speeds • Use the Catalyst 2900 LRE XL or Catalyst 2950 LRE switches to provide up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through a single IP address. • High-performance workgroup-For users who ...- 1000BASE-ZX GBIC: fiber connections of up to carry the VLAN traffic. To preserve switch connectivity if one of the redundant connections fails, the other can create backup paths by using the Catalyst switches to create these Gigabit Ethernet modules also provides flexibility in the ...
...on the uplink ports so that support at higher speeds • Use the Catalyst 2900 LRE XL or Catalyst 2950 LRE switches to provide up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through a single IP address. • High-performance workgroup-For users who ...- 1000BASE-ZX GBIC: fiber connections of up to carry the VLAN traffic. To preserve switch connectivity if one of the redundant connections fails, the other can create backup paths by using the Catalyst switches to create these Gigabit Ethernet modules also provides flexibility in the ...
Software Configuration Guide
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..., Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster Catalyst 3550-12T or Catalyst 3550-12T or Catalyst 3550-12G switch Catalyst 3550-12G switch 1-Gbps HSRP Si Si Redundant Gigabit Backbone 60992 Catalyst 2900 XL, Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster 1-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Network Configuration Examples Chapter 1 Overview - Using the required Cisco proprietary...
..., Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster Catalyst 3550-12T or Catalyst 3550-12T or Catalyst 3550-12G switch Catalyst 3550-12G switch 1-Gbps HSRP Si Si Redundant Gigabit Backbone 60992 Catalyst 2900 XL, Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster 1-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Network Configuration Examples Chapter 1 Overview - Using the required Cisco proprietary...