Software Guide
Page 2
... the Command Reference for your switch. All rights reserved. and certain other company. (0208R) Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 Copyright © 2000-2003, Cisco Systems, Inc. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. The use of the UNIX operating system. THE SPECIFICATIONS AND INFORMATION REGARDING THE...
... the Command Reference for your switch. All rights reserved. and certain other company. (0208R) Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 Copyright © 2000-2003, Cisco Systems, Inc. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. The use of the UNIX operating system. THE SPECIFICATIONS AND INFORMATION REGARDING THE...
Software Guide
Page 16
...Permanent and Static ARP Entries 26-7 Configuring Static Routes 26-9 Scheduling a System Reset 26-10 Scheduling a Reset at a Specific Time 26-10 Scheduling a Reset Within a Specified Amount of Time 26-11 Power Management 26-11 Power Redundancy 26-...16 Configuring Switch Access Using AAA 27-1 Understanding How Authentication Works 27-1 Authentication Overview 27-2 Understanding How Login Authentication Works 27-2 Understanding How Local Authentication Works 27-2 Understanding How TACACS+ Authentication Works 27-3 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G,...
...Permanent and Static ARP Entries 26-7 Configuring Static Routes 26-9 Scheduling a System Reset 26-10 Scheduling a Reset at a Specific Time 26-10 Scheduling a Reset Within a Specified Amount of Time 26-11 Power Management 26-11 Power Redundancy 26-...16 Configuring Switch Access Using AAA 27-1 Understanding How Authentication Works 27-1 Authentication Overview 27-2 Understanding How Login Authentication Works 27-2 Understanding How Local Authentication Works 27-2 Understanding How TACACS+ Authentication Works 27-3 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G,...
Software Guide
Page 38
... enter privileged mode to a specific module, port, or VLAN. Console Enter password: After you successfully connect to the switch through the console port, follow these steps: Step 1 Step 2 Connect to overwrite or erase configuration parameters. For more information, see this display: Cisco Systems, Inc. Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-2 78...
... enter privileged mode to a specific module, port, or VLAN. Console Enter password: After you successfully connect to the switch through the console port, follow these steps: Step 1 Step 2 Connect to overwrite or erase configuration parameters. For more information, see this display: Cisco Systems, Inc. Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-2 78...
Software Guide
Page 41
...a terminal session. Ctrl-U; Command-Line Editing The switch CLI supports a number of characters. Ctrl-D Deletes the character at the privileged prompt to those used on a new line. Table 2-2 lists the history substitution commands. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-5 Ctrl-R Ctrl... you to repeat these commands using the special abbreviated commands, similar to display a list of commands that begin with a specific set of command line editing keystrokes. For example, enter co?
...a terminal session. Ctrl-U; Command-Line Editing The switch CLI supports a number of characters. Ctrl-D Deletes the character at the privileged prompt to those used on a new line. Table 2-2 lists the history substitution commands. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-5 Ctrl-R Ctrl... you to repeat these commands using the special abbreviated commands, similar to display a list of commands that begin with a specific set of command line editing keystrokes. For example, enter co?
Software Guide
Page 43
... is mod_num/port_num. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most systems, the module number and the slot number are located on a specific module, the command syntax is always port 1. To designate a specific port on module 2. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-7 Chapter 2 Using...
... is mod_num/port_num. On the Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches, the left -most systems, the module number and the slot number are located on a specific module, the command syntax is always port 1. To designate a specific port on module 2. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 2-7 Chapter 2 Using...
Software Guide
Page 97
...specific functions that calculates the best loop-free path through the network. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 7-1 This chapter consists of the IEEE 802.1D bridge Spanning Tree Protocol (STP) and describes how to the Command Reference-Catalyst 4000 Family, Catalyst 2948G, and Catalyst 2980G Switches... see Chapter 8, "Configuring Spanning Tree PortFast, UplinkFast, and BackboneFast, and Loop Guard." Cisco's proprietary spanning tree protocols, PVST+ and MISTP, are common to all spanning tree protocols...
...specific functions that calculates the best loop-free path through the network. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 7-1 This chapter consists of the IEEE 802.1D bridge Spanning Tree Protocol (STP) and describes how to the Command Reference-Catalyst 4000 Family, Catalyst 2948G, and Catalyst 2980G Switches... see Chapter 8, "Configuring Spanning Tree PortFast, UplinkFast, and BackboneFast, and Loop Guard." Cisco's proprietary spanning tree protocols, PVST+ and MISTP, are common to all spanning tree protocols...
Software Guide
Page 100
...see the "Configuring the PVST+ Default Port Cost Mode" section on bandwidth. Note You should configure all switches in your network to 65535 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 7-4 78-12647-02 Table 7-1 Default Port Cost Values Using the Short ...to the root switch is calculated for each switch. • A designated switch is selected: the switch that is closest to the root switch through which is the default) or the long method. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit...
...see the "Configuring the PVST+ Default Port Cost Mode" section on bandwidth. Note You should configure all switches in your network to 65535 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 7-4 78-12647-02 Table 7-1 Default Port Cost Values Using the Short ...to the root switch is calculated for each switch. • A designated switch is selected: the switch that is closest to the root switch through which is the default) or the long method. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit...
Software Guide
Page 114
...spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 set spantree portvlanpri mod_num/port_num a switch port. The port VLAN priority value must be lower than the port priority value. show ... on set spantree portvlancost 2/3 cost 20000 1-5,12 7-18 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 set spantree portcost 2/12...value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. Using PVST+ Chapter 7 Configuring Spanning Tree To...
...spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 set spantree portvlanpri mod_num/port_num a switch port. The port VLAN priority value must be lower than the port priority value. show ... on set spantree portvlancost 2/3 cost 20000 1-5,12 7-18 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 set spantree portcost 2/12...value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN. Using PVST+ Chapter 7 Configuring Spanning Tree To...
Software Guide
Page 120
...cost is 0 to slower media. The port with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP. Using MISTP-PVST+ or MISTP ...Priority You can configure port instance cost for that instance. 7-24 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 You should assign lower numbers to ports... instance cost are more likely to be chosen to configure the port instance priority on a switch port. The possible value for that instance. The possible port instance range is 1 to ...
...cost is 0 to slower media. The port with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP. Using MISTP-PVST+ or MISTP ...Priority You can configure port instance cost for that instance. 7-24 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 You should assign lower numbers to ports... instance cost are more likely to be chosen to configure the port instance priority on a switch port. The possible value for that instance. The possible port instance range is 1 to ...
Software Guide
Page 140
...state 11242 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 8-8 78-12647-02 Switch A, the root switch, is most useful in wiring-closet switches with a limited number of applications and should not be enabled on Switch C and transitions it to Switch B over link L2. ...without transitioning the port through the listening and learning states (as shown in blocking state. The port on Switch C that is in Figure 8-2). Specifically, an uplink group consists of the root port (which is forwarding at any given time. Figure 8-1 ...
...state 11242 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 8-8 78-12647-02 Switch A, the root switch, is most useful in wiring-closet switches with a limited number of applications and should not be enabled on Switch C and transitions it to Switch B over link L2. ...without transitioning the port through the listening and learning states (as shown in blocking state. The port on Switch C that is in Figure 8-2). Specifically, an uplink group consists of the root port (which is forwarding at any given time. Figure 8-1 ...
Software Guide
Page 153
... Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 9-1 VTP is a Layer 2 messaging protocol that can make configuration changes centrally on the Catalyst enterprise LAN switches. VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and...
... Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 9-1 VTP is a Layer 2 messaging protocol that can make configuration changes centrally on the Catalyst enterprise LAN switches. VTP minimizes misconfigurations and configuration inconsistencies that maintains VLAN configuration consistency by managing the addition, deletion, and renaming of problems, such as duplicate VLAN names, incorrect VLAN-type specifications, and...
Software Guide
Page 161
... Lab_Network 1 2 server - show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruning vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on this task in privileged mode: Step 1...> (enable) set vtp pruning 250-255 Vlans 2-99,250-255,501-1000 eligible for pruning on trunk 2/1 1-1005 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 9-9
... Lab_Network 1 2 server - show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruning vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable (Optional) Make specific VLANs pruning ineligible on the device. (By default, VLANs 2-1000 are being pruned on this task in privileged mode: Step 1...> (enable) set vtp pruning 250-255 Vlans 2-99,250-255,501-1000 eligible for pruning on trunk 2/1 1-1005 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 9-9
Software Guide
Page 180
...Mono Spanning Tree, or MST) that supports the two trunking encapsulations. We recommend that you connect two Cisco switches through 802.1Q trunks. 11-4 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 If the native VLAN on one end of hardware ...loops before disabling spanning tree. • When you leave spanning tree enabled on the native VLAN of non-Cisco 802.1Q switches. To determine whether a specific piece of the trunk is not possible, disable spanning tree on every VLAN in the network can cause spanning...
...Mono Spanning Tree, or MST) that supports the two trunking encapsulations. We recommend that you connect two Cisco switches through 802.1Q trunks. 11-4 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 If the native VLAN on one end of hardware ...loops before disabling spanning tree. • When you leave spanning tree enabled on the native VLAN of non-Cisco 802.1Q switches. To determine whether a specific piece of the trunk is not possible, disable spanning tree on every VLAN in the network can cause spanning...
Software Guide
Page 182
...Console> (enable) Defining the Allowed VLANs on | desirable | auto | nonegotiate] dot1q show trunk [mod_num/port_num] 11-6 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 To modify the allowed VLANs list, use a combination of the clear trunk and set trunk...1Q trunk. However, you can remove VLANs from the allowed VLANs list for clear trunk mod_num/port_num vlans a trunk. (Optional) Add specific VLANs to prevent traffic for the trunk, even if you first configure a port as a trunk, the set trunk command always adds all...
...Console> (enable) Defining the Allowed VLANs on | desirable | auto | nonegotiate] dot1q show trunk [mod_num/port_num] 11-6 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-12647-02 To modify the allowed VLANs list, use a combination of the clear trunk and set trunk...1Q trunk. However, you can remove VLANs from the allowed VLANs list for clear trunk mod_num/port_num vlans a trunk. (Optional) Add specific VLANs to prevent traffic for the trunk, even if you first configure a port as a trunk, the set trunk command always adds all...
Software Guide
Page 200
...port is restricted to the port. Multiple hosts (MAC addresses) can be required depending on the specific hardware): • Supervisor engine software release 5.1 or later-The Catalyst 4000 family switches can belong to an isolated state. Dynamic port membership is sent to VMPS, which attempts to ...match the MAC address to specific MAC addresses for the VLAN name. See the "Dynamic Port VLAN ...
...port is restricted to the port. Multiple hosts (MAC addresses) can be required depending on the specific hardware): • Supervisor engine software release 5.1 or later-The Catalyst 4000 family switches can belong to an isolated state. Dynamic port membership is sent to VMPS, which attempts to ...match the MAC address to specific MAC addresses for the VLAN name. See the "Dynamic Port VLAN ...
Software Guide
Page 201
...8226; You must be the same. The VMPS parser is enabled automatically for the port numbers. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 12-3 Start each entry in the file on the dynamic port after a specified period. •... membership: • You cannot configure a Catalyst 4000 family switch as dynamic. • When you reconfigure a port from timing out and entering loops caused by incorrect configurations. Note The VTP management domain and the management VLAN of the specific host on a new line. You can ...
...8226; You must be the same. The VMPS parser is enabled automatically for the port numbers. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 12-3 Start each entry in the file on the dynamic port after a specified period. •... membership: • You cannot configure a Catalyst 4000 family switch as dynamic. • When you reconfigure a port from timing out and entering loops caused by incorrect configurations. Note The VTP management domain and the management VLAN of the specific host on a new line. You can ...
Software Guide
Page 203
...> (enable) set port membership 1/2 dynamic Trunking port 1/2 vlan assignment cannot be set vmps downloadserver ip_addr [filename] on VMPS client switches, perform this task in privileged mode: Step 1 Step 2 Step 3 Step 4 Task Specify the IP address of the display when...the VMPS server specification. set vmps downloadmethod rcp | tftp [username] Configure the IP address of the TFTP or rcp server set to dynamic. Spantree port fast start option enabled for a port. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3...
...> (enable) set port membership 1/2 dynamic Trunking port 1/2 vlan assignment cannot be set vmps downloadserver ip_addr [filename] on VMPS client switches, perform this task in privileged mode: Step 1 Step 2 Step 3 Step 4 Task Specify the IP address of the display when...the VMPS server specification. set vmps downloadmethod rcp | tftp [username] Configure the IP address of the TFTP or rcp server set to dynamic. Spantree port fast start option enabled for a port. 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3...
Software Guide
Page 226
CoS value-to determine the specific QoS support for the Switch, page 14-5 • Reverting to the Default Switch CoS Value, page 14-5 • Mapping CoS Values to Transmit Queues and Drop Thresholds, page 14-6 • ...Switch CoS value Transmit queue drop threshold percentages CoS value-to QoS Defaults, page 14-7 • Disabling QoS, page 14-7 Note Because entering some QoS commands disables and then reenables ports (which can cause spanning tree topology changes), enter QoS commands only when necessary. 14-4 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst...
CoS value-to determine the specific QoS support for the Switch, page 14-5 • Reverting to the Default Switch CoS Value, page 14-5 • Mapping CoS Values to Transmit Queues and Drop Thresholds, page 14-6 • ...Switch CoS value Transmit queue drop threshold percentages CoS value-to QoS Defaults, page 14-7 • Disabling QoS, page 14-7 Note Because entering some QoS commands disables and then reenables ports (which can cause spanning tree topology changes), enter QoS commands only when necessary. 14-4 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst...
Software Guide
Page 232
...join the multicast group. If a switch finds the MAC address of the join message, each switch searches its forwarding tables. 15-2 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-...to a well-known address to which all IGMP packets and can inform the switch when specific hosts join or leave IP multicast groups. If you specify group membership for ... address of both the Cisco router and the switch. Joining a Multicast Group When a host wants to join an IP multicast group, it responds to the switch and requests that multicast...
...join the multicast group. If a switch finds the MAC address of the join message, each switch searches its forwarding tables. 15-2 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78-...to a well-known address to which all IGMP packets and can inform the switch when specific hosts join or leave IP multicast groups. If you specify group membership for ... address of both the Cisco router and the switch. Joining a Multicast Group When a host wants to join an IP multicast group, it responds to the switch and requests that multicast...
Software Guide
Page 242
...currently enabled on all ports are specific to the port. Step 2 Verify the configuration. GMRP Timers (milliseconds): Join = 200 Leave = 600 LeaveAll = 10000 Port based GMRP Configuration: 15-12 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78...configuration. Configuring GMRP Chapter 15 Configuring Multicast Services Configuring GMRP Registration These sections describe how to configure GMRP registration modes on switch ports: • Setting Normal Registration Mode, page 15-12 • Setting Fixed Registration Mode, page 15-12 ...
...currently enabled on all ports are specific to the port. Step 2 Verify the configuration. GMRP Timers (milliseconds): Join = 200 Leave = 600 LeaveAll = 10000 Port based GMRP Configuration: 15-12 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 78...configuration. Configuring GMRP Chapter 15 Configuring Multicast Services Configuring GMRP Registration These sections describe how to configure GMRP registration modes on switch ports: • Setting Normal Registration Mode, page 15-12 • Setting Fixed Registration Mode, page 15-12 ...