Software Configuration Guide
Page 1
Catalyst 2950 Desktop Switch Software Configuration Guide Cisco IOS Release 12.1(11)EA1 and 12.1(11)YJ November 2002 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Customer Order Number: DOC-7814982= Text Part Number: 78-14982-01
Catalyst 2950 Desktop Switch Software Configuration Guide Cisco IOS Release 12.1(11)EA1 and 12.1(11)YJ November 2002 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 526-4100 Customer Order Number: DOC-7814982= Text Part Number: 78-14982-01
Software Configuration Guide
Page 4
... 3-1 Features 3-2 Front Panel View 3-4 Cluster Tree 3-6 Front-Panel Images 3-7 Redundant Power System LED 3-8 Port Modes and LEDs 3-8 VLAN Membership Modes 3-9 Topology View 3-10 Topology Icons 3-12 Device and Link Labels 3-13 Colors in the Topology View 3-14 Topology Display Options 3-15 Menus and Toolbar 3-15 Menu Bar 3-15 Toolbar 3-20 Front...
... 3-1 Features 3-2 Front Panel View 3-4 Cluster Tree 3-6 Front-Panel Images 3-7 Redundant Power System LED 3-8 Port Modes and LEDs 3-8 VLAN Membership Modes 3-9 Topology View 3-10 Topology Icons 3-12 Device and Link Labels 3-13 Colors in the Topology View 3-14 Topology Display Options 3-15 Menus and Toolbar 3-15 Menu Bar 3-15 Toolbar 3-20 Front...
Software Configuration Guide
Page 6
... Switch Characteristics 6-3 Standby Command Switch Characteristics 6-3 Candidate Switch and Member Switch Characteristics 6-4 Planning a Switch Cluster 6-5 Automatic Discovery of Cluster Candidates and Members 6-5 Discovery through CDP Hops 6-6 Discovery through Non-CDP-Capable and Noncluster-Capable Devices 6-7 Discovery through the Same Management VLAN 6-8 Discovery through Different Management VLANs 6-9 Discovery of Newly Installed Switches 6-10 HSRP and Standby Command Switches 6-12 Catalyst...
... Switch Characteristics 6-3 Standby Command Switch Characteristics 6-3 Candidate Switch and Member Switch Characteristics 6-4 Planning a Switch Cluster 6-5 Automatic Discovery of Cluster Candidates and Members 6-5 Discovery through CDP Hops 6-6 Discovery through Non-CDP-Capable and Noncluster-Capable Devices 6-7 Discovery through the Same Management VLAN 6-8 Discovery through Different Management VLANs 6-9 Discovery of Newly Installed Switches 6-10 HSRP and Standby Command Switches 6-12 Catalyst...
Software Configuration Guide
Page 7
...Switch-Specific Features in Switch Clusters 6-19 Creating a Switch Cluster 6-19 Enabling a Command Switch 6-19 Adding Member Switches 6-20 Creating a Cluster Standby Group 6-22 Verifying a Switch Cluster 6-24 Using the CLI to Manage Switch Clusters 6-25 Catalyst 1900 and Catalyst 2820 CLI Considerations 6-25 Using SNMP to Manage Switch Clusters 6-26 Administering the Switch... 7-10 Controlling Switch Access with TACACS+ 7-10 Understanding TACACS+ 7-10 TACACS+ Operation 7-12 Configuring TACACS+ 7-12 Default TACACS+ Configuration 7-13 Catalyst 2950 Desktop Switch Software Configuration Guide vii
...Switch-Specific Features in Switch Clusters 6-19 Creating a Switch Cluster 6-19 Enabling a Command Switch 6-19 Adding Member Switches 6-20 Creating a Cluster Standby Group 6-22 Verifying a Switch Cluster 6-24 Using the CLI to Manage Switch Clusters 6-25 Catalyst 1900 and Catalyst 2820 CLI Considerations 6-25 Using SNMP to Manage Switch Clusters 6-26 Administering the Switch... 7-10 Controlling Switch Access with TACACS+ 7-10 Understanding TACACS+ 7-10 TACACS+ Operation 7-12 Configuring TACACS+ 7-12 Default TACACS+ Configuration 7-13 Catalyst 2950 Desktop Switch Software Configuration Guide vii
Software Configuration Guide
Page 10
... Interfaces 9-4 Configuring a Range of Interfaces 9-6 Configuring and Using Interface-Range Macros 9-8 Configuring Switch Interfaces 9-9 Default Ethernet Interface Configuration 9-10 SFP Configuration 9-10 Configuring Interface Speed and Duplex Mode 9-11 Configuration Guidelines 9-12 Setting the Interface Speed and Duplex Parameters 9-13 Configuring Media Types for Gigabit Interfaces 9-14 ... LRE Profiles 10-2 LRE Sequences 10-4 CPE Ethernet Links 10-5 Configuring LRE Ports 10-5 Environmental Guidelines for LRE Links 10-6 Catalyst 2950 Desktop Switch Software Configuration Guide x 78-14982-01
... Interfaces 9-4 Configuring a Range of Interfaces 9-6 Configuring and Using Interface-Range Macros 9-8 Configuring Switch Interfaces 9-9 Default Ethernet Interface Configuration 9-10 SFP Configuration 9-10 Configuring Interface Speed and Duplex Mode 9-11 Configuration Guidelines 9-12 Setting the Interface Speed and Duplex Parameters 9-13 Configuring Media Types for Gigabit Interfaces 9-14 ... LRE Profiles 10-2 LRE Sequences 10-4 CPE Ethernet Links 10-5 Configuring LRE Ports 10-5 Environmental Guidelines for LRE Links 10-6 Catalyst 2950 Desktop Switch Software Configuration Guide x 78-14982-01
Software Configuration Guide
Page 11
... E R 78-14982-01 Guidelines for Using LRE Profiles 10-7 CPE Ethernet Link Guidelines 10-7 Considerations for Connected Cisco 575 LRE CPEs 10-7 Considerations for Connected Cisco 585 LRE CPEs 10-8 Assigning a Global Profile to All LRE Ports 10-8 Assigning a Profile to a Specific ...11 Profile Locking 10-11 Link Qualification and SNR Margins 10-12 LRE Link Persistence 10-14 LRE Link Monitor 10-14 Upgrading LRE Switch Firmware 10-15 Configuring for an LRE Upgrade 10-15 Performing...Tree Address Management 11-8 STP and IEEE 802.1Q Trunks 11-8 Catalyst 2950 Desktop Switch Software Configuration Guide xi
... E R 78-14982-01 Guidelines for Using LRE Profiles 10-7 CPE Ethernet Link Guidelines 10-7 Considerations for Connected Cisco 575 LRE CPEs 10-7 Considerations for Connected Cisco 585 LRE CPEs 10-8 Assigning a Global Profile to All LRE Ports 10-8 Assigning a Profile to a Specific ...11 Profile Locking 10-11 Link Qualification and SNR Margins 10-12 LRE Link Persistence 10-14 LRE Link Monitor 10-14 Upgrading LRE Switch Firmware 10-15 Configuring for an LRE Upgrade 10-15 Performing...Tree Address Management 11-8 STP and IEEE 802.1Q Trunks 11-8 Catalyst 2950 Desktop Switch Software Configuration Guide xi
Software Configuration Guide
Page 12
... Between MST Regions 12-9 Hop Count 12-10 Boundary Ports 12-10 Interoperability with 802.1D STP 12-11 Configuring RSTP and MSTP Features 12-11 Default RSTP and MSTP Configuration 12-12 RSTP and MSTP Configuration Guidelines 12-12 Specifying the MST Region Configuration and Enabling MSTP 12-13 Configuring the Root Switch 12-14 Catalyst 2950 Desktop Switch Software Configuration Guide xii...
... Between MST Regions 12-9 Hop Count 12-10 Boundary Ports 12-10 Interoperability with 802.1D STP 12-11 Configuring RSTP and MSTP Features 12-11 Default RSTP and MSTP Configuration 12-12 RSTP and MSTP Configuration Guidelines 12-12 Specifying the MST Region Configuration and Enabling MSTP 12-13 Configuring the Root Switch 12-14 Catalyst 2950 Desktop Switch Software Configuration Guide xii...
Software Configuration Guide
Page 13
... a Secondary Root Switch 12-16 Configuring the Port Priority 12-17 Configuring the Path Cost 12-18 Configuring the Switch Priority 12-19 Configuring the Hello Time 12-19 Configuring the Forwarding-Delay Time 12-20 Configuring the Maximum-Aging Time 12-21 Configuring the Maximum-Hop Count 12-21 Specifying the Link Type to Ensure Rapid Transitions 12-22 Restarting... Enabling BackboneFast 13-19 Enabling Root Guard 13-19 Enabling Loop Guard 13-20 Displaying the Spanning-Tree Status 13-21 Contents 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide xiii
... a Secondary Root Switch 12-16 Configuring the Port Priority 12-17 Configuring the Path Cost 12-18 Configuring the Switch Priority 12-19 Configuring the Hello Time 12-19 Configuring the Forwarding-Delay Time 12-20 Configuring the Maximum-Aging Time 12-21 Configuring the Maximum-Hop Count 12-21 Specifying the Link Type to Ensure Rapid Transitions 12-22 Restarting... Enabling BackboneFast 13-19 Enabling Root Guard 13-19 Enabling Loop Guard 13-20 Displaying the Spanning-Tree Status 13-21 Contents 78-14982-01 Catalyst 2950 Desktop Switch Software Configuration Guide xiii
Software Configuration Guide
Page 14
...-8 Deleting a VLAN 14-10 Assigning Static-Access Ports to a VLAN 14-11 Configuring Extended-Range VLANs 14-12 Default VLAN Configuration 14-12 Extended-Range VLAN Configuration Guidelines 14-12 Creating an Extended-Range VLAN 14-13 Displaying VLANs 14-14 Configuring VLAN Trunks 14-15 Trunking Overview 14-15...Sharing Using STP 14-21 Load Sharing Using STP Port Priorities 14-21 Load Sharing Using STP Path Cost 14-23 Configuring VMPS 14-24 Understanding VMPS 14-25 Dynamic Port VLAN Membership 14-25 VMPS Database Configuration File 14-26 Default VMPS Configuration 14-27 VMPS Configuration Guidelines...
...-8 Deleting a VLAN 14-10 Assigning Static-Access Ports to a VLAN 14-11 Configuring Extended-Range VLANs 14-12 Default VLAN Configuration 14-12 Extended-Range VLAN Configuration Guidelines 14-12 Creating an Extended-Range VLAN 14-13 Displaying VLANs 14-14 Configuring VLAN Trunks 14-15 Trunking Overview 14-15...Sharing Using STP 14-21 Load Sharing Using STP Port Priorities 14-21 Load Sharing Using STP Path Cost 14-23 Configuring VMPS 14-24 Understanding VMPS 14-25 Dynamic Port VLAN Membership 14-25 VMPS Database Configuration File 14-26 Default VMPS Configuration 14-27 VMPS Configuration Guidelines...
Software Configuration Guide
Page 15
...-9 Configuration Requirements 15-9 Configuring a VTP Server 15-9 Configuring a VTP Client 15-11 Disabling VTP (VTP Transparent Mode) 15-12 Enabling VTP Version 2 15-13 Enabling VTP Pruning 15-14 Adding a VTP Client Switch to a VTP Domain 15-15 Monitoring VTP 15-16 Configuring Voice VLAN 16-1 Understanding Voice VLAN 16-1 Configuring Voice...
...-9 Configuration Requirements 15-9 Configuring a VTP Server 15-9 Configuring a VTP Client 15-11 Disabling VTP (VTP Transparent Mode) 15-12 Enabling VTP Version 2 15-13 Enabling VTP Pruning 15-14 Adding a VTP Client Switch to a VTP Domain 15-15 Monitoring VTP 15-16 Configuring Voice VLAN 16-1 Understanding Voice VLAN 16-1 Configuring Voice...
Software Configuration Guide
Page 17
... Security Configuration Guidelines 18-7 Enabling and Configuring Port Security 18-7 Enabling and Configuring Port Security Aging 18-10 Displaying Port-Based Traffic Control Settings 18-12 Configuring UDLD 19-1 Understanding UDLD 19-1 Configuring UDLD 19-3 Default UDLD Configuration 19-3 Enabling UDLD Globally 19-4 Enabling UDLD on an Interface 19-4 Resetting an... an Interface 20-4 Monitoring and Maintaining CDP 20-5 Configuring SPAN and RSPAN 21-1 Understanding SPAN and RSPAN 21-1 SPAN and RSPAN Concepts and Terminology 21-3 Catalyst 2950 Desktop Switch Software Configuration Guide xvii
... Security Configuration Guidelines 18-7 Enabling and Configuring Port Security 18-7 Enabling and Configuring Port Security Aging 18-10 Displaying Port-Based Traffic Control Settings 18-12 Configuring UDLD 19-1 Understanding UDLD 19-1 Configuring UDLD 19-3 Default UDLD Configuration 19-3 Enabling UDLD Globally 19-4 Enabling UDLD on an Interface 19-4 Resetting an... an Interface 20-4 Monitoring and Maintaining CDP 20-5 Configuring SPAN and RSPAN 21-1 Understanding SPAN and RSPAN 21-1 SPAN and RSPAN Concepts and Terminology 21-3 Catalyst 2950 Desktop Switch Software Configuration Guide xvii
Software Configuration Guide
Page 18
...-8 SPAN Configuration Guidelines 21-8 Creating a SPAN Session and Specifying Ports to Monitor 21-9 Removing Ports from a SPAN Session 21-11 Specifying VLANs to Monitor 21-12 Specifying VLANs to Filter 21-13 Configuring RSPAN 21-14 RSPAN Configuration Guidelines 21-14 Creating an RSPAN Session 21-15 Creating an RSPAN Destination... Logging 23-1 Configuring System Message Logging 23-2 System Log Message Format 23-2 Default System Message Logging Configuration 23-3 Disabling and Enabling Message Logging 23-4 xviii Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01
...-8 SPAN Configuration Guidelines 21-8 Creating a SPAN Session and Specifying Ports to Monitor 21-9 Removing Ports from a SPAN Session 21-11 Specifying VLANs to Monitor 21-12 Specifying VLANs to Filter 21-13 Configuring RSPAN 21-14 RSPAN Configuration Guidelines 21-14 Creating an RSPAN Session 21-15 Creating an RSPAN Destination... Logging 23-1 Configuring System Message Logging 23-2 System Log Message Format 23-2 Default System Message Logging Configuration 23-3 Disabling and Enabling Message Logging 23-4 xviii Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01
Software Configuration Guide
Page 19
... Examples 24-14 Displaying SNMP Status 24-15 Configuring Network Security with ACLs 25-1 Understanding ACLs 25-2 Handling Fragmented and Unfragmented Traffic 25-3 Understanding Access Control Parameters 25-4 Guidelines for Applying ACLs to Physical Interfaces 25-6 Configuring ACLs 25-6 Unsupported Features 25-7 Creating Standard and Extended IP ACLs 25-7 Catalyst 2950 Desktop Switch Software...
... Examples 24-14 Displaying SNMP Status 24-15 Configuring Network Security with ACLs 25-1 Understanding ACLs 25-2 Handling Fragmented and Unfragmented Traffic 25-3 Understanding Access Control Parameters 25-4 Guidelines for Applying ACLs to Physical Interfaces 25-6 Configuring ACLs 25-6 Unsupported Features 25-7 Creating Standard and Extended IP ACLs 25-7 Catalyst 2950 Desktop Switch Software...
Software Configuration Guide
Page 22
... I X B A P P E N D I X Replacing a Failed Command Switch with a Cluster Member 28-9 Replacing a Failed Command Switch with Another Switch 28-10 Recovering from Lost Member Connectivity 28-11 Preventing Autonegotiation Mismatches 28-12 Troubleshooting LRE Port Configuration 28-12 GBIC and SFP Module Security and Identification 28-13 Using Debug Commands 28-14 Enabling ... a Configuration File By Using TFTP B-11 Downloading the Configuration File By Using TFTP B-12 Uploading the Configuration File By Using TFTP B-12 Catalyst 2950 Desktop Switch Software Configuration Guide xxii 78-14982-01
... I X B A P P E N D I X Replacing a Failed Command Switch with a Cluster Member 28-9 Replacing a Failed Command Switch with Another Switch 28-10 Recovering from Lost Member Connectivity 28-11 Preventing Autonegotiation Mismatches 28-12 Troubleshooting LRE Port Configuration 28-12 GBIC and SFP Module Security and Identification 28-13 Using Debug Commands 28-14 Enabling ... a Configuration File By Using TFTP B-11 Downloading the Configuration File By Using TFTP B-12 Uploading the Configuration File By Using TFTP B-12 Catalyst 2950 Desktop Switch Software Configuration Guide xxii 78-14982-01
Software Configuration Guide
Page 25
... the concepts and terminology of the enhanced software image [12.1(11)LRE]. The EI provides a richer set of features, including access control lists (ACLs), enhanced quality of the CMS web-based, switch management interface. For CMS field-level window descriptions and ...command-line interface (CLI) procedures. For complete syntax and usage information about configuring and troubleshooting a Catalyst 2950 or Catalyst 2950 Long-Reach Ethernet (LRE) switch or switch clusters. Purpose This guide provides information about the commands that have met the hardware and software ...
... the concepts and terminology of the enhanced software image [12.1(11)LRE]. The EI provides a richer set of features, including access control lists (ACLs), enhanced quality of the CMS web-based, switch management interface. For CMS field-level window descriptions and ...command-line interface (CLI) procedures. For complete syntax and usage information about configuring and troubleshooting a Catalyst 2950 or Catalyst 2950 Long-Reach Ethernet (LRE) switch or switch clusters. Purpose This guide provides information about the commands that have met the hardware and software ...
Software Configuration Guide
Page 26
... Registrar network management application, you can be deployed in a network. Chapter 2, "Using the Command-Line Interface," describes how to the Catalyst 2950 Desktop Switch Hardware Installation Guide. therefore, CLI procedures are described in the standard Cisco IOS Release 12.1 documentation. Note This guide does not repeat the concepts and CLI procedures provided in the...
... Registrar network management application, you can be deployed in a network. Chapter 2, "Using the Command-Line Interface," describes how to the Catalyst 2950 Desktop Switch Hardware Installation Guide. therefore, CLI procedures are described in the standard Cisco IOS Release 12.1 documentation. Note This guide does not repeat the concepts and CLI procedures provided in the...
Software Configuration Guide
Page 27
...Cisco implementation of the IEEE 802.1W Rapid STP (RSTP) and the IEEE 802.1S Multiple STP (MSTP) on your switch. Chapter 12, "Configuring RSTP and MSTP," describes how to configure LRE-specific features on the switch... Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN), which is used when your switch. As LANs extend to configure the Simple Network Management Protocol (SNMP). Chapter 24,... VLANs, VLAN trunks, and the VLAN Membership Policy Server (VMPS). Catalyst 2950 Desktop Switch Software Configuration Guide xxvii Chapter 13, "Configuring Optional Spanning-Tree Features,"...
...Cisco implementation of the IEEE 802.1W Rapid STP (RSTP) and the IEEE 802.1S Multiple STP (MSTP) on your switch. Chapter 12, "Configuring RSTP and MSTP," describes how to configure LRE-specific features on the switch... Switched Port Analyzer (SPAN) and Remote SPAN (RSPAN), which is used when your switch. As LANs extend to configure the Simple Network Management Protocol (SNMP). Chapter 24,... VLANs, VLAN trunks, and the VLAN Membership Policy Server (VMPS). Catalyst 2950 Desktop Switch Software Configuration Guide xxvii Chapter 13, "Configuring Optional Spanning-Tree Features,"...
Software Configuration Guide
Page 29
... POTS Splitter (not orderable but is available on Cisco.com) • Release Notes for the Catalyst 2950 Desktop Switch, 12.1(11)YJ (not orderable but is available on Cisco.com) Note Switch requirements and procedures for the Catalyst 2900 Series and Catalyst 3500 Series XL Switches (not orderable but is available on Cisco.com) Obtaining Documentation These sections explain how...
... POTS Splitter (not orderable but is available on Cisco.com) • Release Notes for the Catalyst 2950 Desktop Switch, 12.1(11)YJ (not orderable but is available on Cisco.com) Note Switch requirements and procedures for the Catalyst 2900 Series and Catalyst 3500 Series XL Switches (not orderable but is available on Cisco.com) Obtaining Documentation These sections explain how...
Software Configuration Guide
Page 33
... Features The Catalyst 2950 software supports the switches listed in Table 1-1 and in the release notes. use the YJ release for non-LRE switches only; Table 1-1 Switches Supported Switch Catalyst 2950-12 Software Image SI1 Catalyst 2950-24 SI Catalyst 2950C-24 EI2 Catalyst 2950G-12-EI EI Catalyst 2950G-24-EI EI Catalyst 2950G-24-EI-DC EI Catalyst 2950G-48-EI EI Catalyst 2950SX-24 SI Catalyst 2950T-24 EI Catalyst 2950ST-24-LRE YJ3 Catalyst 2950ST...
... Features The Catalyst 2950 software supports the switches listed in Table 1-1 and in the release notes. use the YJ release for non-LRE switches only; Table 1-1 Switches Supported Switch Catalyst 2950-12 Software Image SI1 Catalyst 2950-24 SI Catalyst 2950C-24 EI2 Catalyst 2950G-12-EI EI Catalyst 2950G-24-EI EI Catalyst 2950G-24-EI-DC EI Catalyst 2950G-48-EI EI Catalyst 2950SX-24 SI Catalyst 2950T-24 EI Catalyst 2950ST-24-LRE YJ3 Catalyst 2950ST...
Software Configuration Guide
Page 35
... Configuration Guide 1-3 Refer to the release notes for - Note See the "Advantages of configuration files by unicast TFTP messages. The Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later support frame sizes from 1500 to 1530 bytes • Per-port broadcast storm control for preventing faulty...
... Configuration Guide 1-3 Refer to the release notes for - Note See the "Advantages of configuration files by unicast TFTP messages. The Catalyst 2950G-12-EI, 2950G-24-EI, 2950G-24-EI-DC, and 2950G-48-EI switches running Cisco IOS Release 12.1(6)EA2 or later support frame sizes from 1500 to 1530 bytes • Per-port broadcast storm control for preventing faulty...