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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
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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 ...
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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-...
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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
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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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...Cisco IOS and be familiar with other documents for information about the commands that you have met the hardware and software requirements and cluster compatibility requirements described in the release notes. • Start-up information-This guide assumes that have assigned switch...VLANs, Remote Switched Port Analyzer (RSPAN), and unicast MAC address filtering. Use this guide with the concepts and terminology of the CMS web-based, switch... professional managing the Catalyst 2950 and 2955 switches, hereafter referred to as the switches. The Catalyst 2950 switch is supported by ...
...Cisco IOS and be familiar with other documents for information about the commands that you have met the hardware and software requirements and cluster compatibility requirements described in the release notes. • Start-up information-This guide assumes that have assigned switch...VLANs, Remote Switched Port Analyzer (RSPAN), and unicast MAC address filtering. Use this guide with the concepts and terminology of the CMS web-based, switch... professional managing the Catalyst 2950 and 2955 switches, hereafter referred to as the switches. The Catalyst 2950 switch is supported by ...
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... Catalyst 2955 Switch Software Configuration Guide 1-3 Catalyst 2950 LRE switches - Catalyst 2955 switches • Port blocking on forwarding unknown unicast and multicast traffic (available only on the Catalyst LRE switches and on a switch port can belong • IGMP throttling for configuring the action when the maximum number of entries is in a multicast VLAN while isolating the streams from 1500 to the...
... Catalyst 2955 Switch Software Configuration Guide 1-3 Catalyst 2950 LRE switches - Catalyst 2955 switches • Port blocking on forwarding unknown unicast and multicast traffic (available only on the Catalyst LRE switches and on a switch port can belong • IGMP throttling for configuring the action when the maximum number of entries is in a multicast VLAN while isolating the streams from 1500 to the...
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... and can forward traffic 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 Redundancy • HSRP for command-switch redundancy • UniDirectional Link Detection (UDLD) on...
... and can forward traffic 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 Redundancy • HSRP for command-switch redundancy • UniDirectional Link Detection (UDLD) on...
Software Configuration Guide
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... appropriate network resources, traffic patterns, and bandwidth 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 support the number of... or root ports from the blocking state to send and receive control protocol frames. Loop guard for voice traffic from Cisco IP Phones • VLAN 1 minimization to reduce the risk of spanning-tree loops or storms by enabling a port to management interfaces (CMS ...
... appropriate network resources, traffic patterns, and bandwidth 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 support the number of... or root ports from the blocking state to send and receive control protocol frames. Loop guard for voice traffic from Cisco IP Phones • VLAN 1 minimization to reduce the risk of spanning-tree loops or storms by enabling a port to management interfaces (CMS ...
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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 Note RSPAN is available only in multi-unit, multidwelling, and...24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-7 CPE Ethernet ports and remote Ethernet devices, such as a PC • Support for connecting to the public switched telephone network (PSTN) through plain old telephone service (POTS) splitters such as the Cisco LRE 48 POTS ...
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 Note RSPAN is available only in multi-unit, multidwelling, and...24 LRE 997 switches Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-7 CPE Ethernet ports and remote Ethernet devices, such as a PC • Support for connecting to the public switched telephone network (PSTN) through plain old telephone service (POTS) splitters such as the Cisco LRE 48 POTS ...
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... step-by-step through one IP address as VLANs, ACLs, and QoS. • Use a wizard that can join a cluster. For more information about switch clusters, see Chapter 4, "Getting Started with CMS." You can use Cisco switch clustering technology to manage up to 16 interconnected and supported Catalyst switches through configuring complex features such as if they...
... step-by-step through one IP address as VLANs, ACLs, and QoS. • Use a wizard that can join a cluster. For more information about switch clusters, see Chapter 4, "Getting Started with CMS." You can use Cisco switch clustering technology to manage up to 16 interconnected and supported Catalyst switches through configuring complex features such as if they...
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...the Fast Ethernet or Gigabit Ethernet switch ports so that they use VLANs and IP subnets to place the network resources in the same logical network as the users who access those demands. 1-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-...-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...
...the Fast Ethernet or Gigabit Ethernet switch ports so that they use VLANs and IP subnets to place the network resources in the same logical network as the users who access those demands. 1-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-...-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...
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... stack of using the Catalyst switches to create these Gigabit Ethernet modules also provides flexibility in a star configuration. Each switch in this with the switches in the backbone. High demand for protecting mission-critical applications • Use VLANs and protected ports to ... in a GigaStack configuration, where the 1-Gbps connection is shared among the switches. To preserve switch connectivity if one of up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through GigaStack GBIC connections. You can serve as a backup path. Using ...
... stack of using the Catalyst switches to create these Gigabit Ethernet modules also provides flexibility in a star configuration. Each switch in this with the switches in the backbone. High demand for protecting mission-critical applications • Use VLANs and protected ports to ... in a GigaStack configuration, where the 1-Gbps connection is shared among the switches. To preserve switch connectivity if one of up to nine Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 switches through GigaStack GBIC connections. You can serve as a backup path. Using ...
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... the required Cisco proprietary signaling and cabling, the GigaStack GBIC-to other Gigabit Ethernet devices. Figure 1-1 Example Configurations Catalyst 2950 switch Cost-Effective Wiring Closet Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 GigaStack cluster High-Performance Workgroup Catalyst 3550-12T or Catalyst 3550-12G switch Si Gigabit server Catalyst 2900 XL, Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster Catalyst 3550-12T...
... the required Cisco proprietary signaling and cabling, the GigaStack GBIC-to other Gigabit Ethernet devices. Figure 1-1 Example Configurations Catalyst 2950 switch Cost-Effective Wiring Closet Catalyst 2900 XL, Catalyst 2950, Catalyst 3500 XL, and Catalyst 3550 GigaStack cluster High-Performance Workgroup Catalyst 3550-12T or Catalyst 3550-12G switch Si Gigabit server Catalyst 2900 XL, Catalyst 2950, Catalyst 2955, Catalyst 3500 XL, and Catalyst 3550 cluster Catalyst 3550-12T...