Software Guide
Page 2
.... and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, ... The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are service marks of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS...
.... and Aironet, ASIST, BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press, Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherSwitch, Fast Step, ... The Fastest Way to Increase Your Internet Quotient, TransPath, and VCO are service marks of their respective owners. THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS...
Software Guide
Page 17
... Login Banner 27-5 Enabling or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9 Scheduling a System Reset 27-10 Scheduling a Reset at a Specific Time 27-10 Scheduling a Reset Within...
... Login Banner 27-5 Enabling or Disabling the "Cisco Systems Console" Telnet Login Banner 27-5 Defining and Using Command Aliases 27-6 Defining and Using IP Aliases 27-7 Configuring Permanent and Static ARP Entries 27-8 Configuring Static Routes 27-9 Scheduling a System Reset 27-10 Scheduling a Reset at a Specific Time 27-10 Scheduling a Reset Within...
Software Guide
Page 36
...on page 2-9). Make sure that the terminal is connected to the switch and that the terminal is already booted, press Enter to see this display: Cisco Systems, Inc. To access the switch CLI through an EIA/TIA-232 (RS-232) cable. For more information, see the "Example of a ... Software Configuration Guide-Release 8.1 2-2 78-15486-01 If the switch is on page 2-3. Use show commands to display the current configuration and to a specific module, port, or VLAN. If the switch is not on the terminal (for your switch. Accessing the Switch CLI Chapter 2 Using the Command-Line...
...on page 2-9). Make sure that the terminal is connected to the switch and that the terminal is already booted, press Enter to see this display: Cisco Systems, Inc. To access the switch CLI through an EIA/TIA-232 (RS-232) cable. For more information, see the "Example of a ... Software Configuration Guide-Release 8.1 2-2 78-15486-01 If the switch is on page 2-3. Use show commands to display the current configuration and to a specific module, port, or VLAN. If the switch is not on the terminal (for your switch. Accessing the Switch CLI Chapter 2 Using the Command-Line...
Software Guide
Page 39
... the Up Arrow key1 Repeats current command line on the command line. 1. Esc D Deletes from the cursor to display a list of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set ICMP unreachable messages Note The system repeats the...
... the Up Arrow key1 Repeats current command line on the command line. 1. Esc D Deletes from the cursor to display a list of commands that begin with a specific set ip Set IP Permit List Set ICMP redirect enable/disable Set IP routing table entry Set ICMP unreachable messages Note The system repeats the...
Software Guide
Page 41
...2-4 shows examples of ports. The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. To designate a specific port on module 2. The supervisor engine module is numbered 2/1 instead of ports. When you enter configuration commands on these switches are located ...on these switches, you can enter lists of 1/1 because logically the ports are logically on a specific module, the command syntax is always port 1. Chapter 2 Using the Command-Line Interface Using Command Aliases Task To scroll down...
...2-4 shows examples of ports. The Catalyst 4912G, the Catalyst 2948G, and the Catalyst 2980G switches have two logical modules. To designate a specific port on module 2. The supervisor engine module is numbered 2/1 instead of ports. When you enter configuration commands on these switches are located ...on these switches, you can enter lists of 1/1 because logically the ports are logically on a specific module, the command syntax is always port 1. Chapter 2 Using the Command-Line Interface Using Command Aliases Task To scroll down...
Software Guide
Page 76
... Ethernet ports into a single EtherChannel. The configuration is a Cisco-proprietary protocol that conform to determine whether your hardware, you can enter the show port capabilities command to the 802.3ad specification. For more information, see the "EtherChannel Configuration Guidelines and Restrictions... switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Depending on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame. If a port within...
... Ethernet ports into a single EtherChannel. The configuration is a Cisco-proprietary protocol that conform to determine whether your hardware, you can enter the show port capabilities command to the 802.3ad specification. For more information, see the "EtherChannel Configuration Guidelines and Restrictions... switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Depending on Cisco switches and those switches released by the spanning tree feature, the maximum supported number of each frame. If a port within...
Software Guide
Page 98
...switched network are eliminated by defining a tree that spans all of the switch. This exchange of multiple segments. all spanning tree protocols. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are based on the IEEE 802.1D STP. (See the "Understanding How PVST+ and MISTP ... a spanning tree connected active topology. Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific functions that are common to all paths that are not needed to reach the root switch from anywhere in the switched network are placed...
...switched network are eliminated by defining a tree that spans all of the switch. This exchange of multiple segments. all spanning tree protocols. The Cisco proprietary spanning tree protocols, PVST+ and MISTP, are based on the IEEE 802.1D STP. (See the "Understanding How PVST+ and MISTP ... a spanning tree connected active topology. Understanding How STPs Work Chapter 7 Configuring Spanning Tree Understanding How STPs Work This section describes the specific functions that are common to all paths that are not needed to reach the root switch from anywhere in the switched network are placed...
Software Guide
Page 100
... the STP are assigned by the switch for each switch is selected. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to communicate with and compute the spanning tree topology. Table 7-1 shows the default port... cost values that is selected. BPDUs are only used for ports that have not been specifically configured for each port that are selected. Calculating and Assigning Port Costs By calculating and assigning the port cost of the transmitting port The...
... the STP are assigned by the switch for each switch is selected. Calculating the Port Cost Using the Short Method The IEEE 802.1D specification assigns 16-bit (short) default port cost values to communicate with and compute the spanning tree topology. Table 7-1 shows the default port... cost values that is selected. BPDUs are only used for ports that have not been specifically configured for each port that are selected. Calculating and Assigning Port Costs By calculating and assigning the port cost of the transmitting port The...
Software Guide
Page 116
... avoid explicit configuration by using MST. A port that can display the configured and operational status of PortFast by treating all ports are connected to make a specific bridge IST master. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." When you enter the show spantree portfast...
... avoid explicit configuration by using MST. A port that can display the configured and operational status of PortFast by treating all ports are connected to make a specific bridge IST master. See Chapter 8, "Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard." When you enter the show spantree portfast...
Software Guide
Page 123
... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlanpri mod_num/port_num a switch port. If all ports have the same priority value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN... to trunking ports only. Console> (enable) show config all . . . priority [vlans] Verify the port VLAN priority. set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 set the port priority for a trunking port in privileged mode: Step 1...
... 2/3 12 set spantree portpri 2/1-48 32 set spantree portvlanpri 2/1 0 set spantree portvlanpri mod_num/port_num a switch port. If all ports have the same priority value for a particular VLAN, the port with the lowest priority value for a specific VLAN forwards frames for that VLAN... to trunking ports only. Console> (enable) show config all . . . priority [vlans] Verify the port VLAN priority. set spantree portvlanpri 2/48 0 set spantree portvlancost 2/1 cost 99 set spantree portvlancost 2/2 cost 99 set the port priority for a trunking port in privileged mode: Step 1...
Software Guide
Page 131
.... The port with a lower instance cost are attached to trunking ports only. This parameter applies to slower media. Ports with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP or MISTP-PVST+. Command set spantree portinstancepri {mod/port} priority [instances] 78-15486-01 Catalyst 4500...
.... The port with a lower instance cost are attached to trunking ports only. This parameter applies to slower media. Ports with the lowest priority value for a specific MISTP instance forwards frames for an instance of MISTP or MISTP-PVST+. Command set spantree portinstancepri {mod/port} priority [instances] 78-15486-01 Catalyst 4500...
Software Guide
Page 149
... 2980G Switches Software Configuration Guide-Release 8.1 7-53 If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for an instance of MST.
... 2980G Switches Software Configuration Guide-Release 8.1 7-53 If all ports have the same priority for an MST instance, the port with the lowest priority for a specific MST instance forwards frames for an instance of MST.
Software Guide
Page 159
.... An uplink group is a set of which is forwarding) and a set of ports (per VLAN), only one of blocked ports (not including self-looped ports). Specifically, an uplink group consists of the root port (which is in wiring-closet switches that is connected to forwarding state 11242 78-15486-01 Catalyst...
.... An uplink group is a set of which is forwarding) and a set of ports (per VLAN), only one of blocked ports (not including self-looped ports). Specifically, an uplink group consists of the root port (which is in wiring-closet switches that is connected to forwarding state 11242 78-15486-01 Catalyst...
Software Guide
Page 177
... 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 security violations.
... 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 security violations.
Software Guide
Page 187
show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable This command will not be pruning-capable before enabling. indicates dot1q-all features VTP .... Do you want to 99, 250-255, and 501-1000 pruning eligible on the particular device: Console> (enable) 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 Step 2 Step 3 Step ...
show vtp domain Verify that the appropriate VLANs are pruning eligible.) clear vtp pruneeligible vlan_range (Optional) Make specific VLANs pruning eligible set vtp pruning enable This command will not be pruning-capable before enabling. indicates dot1q-all features VTP .... Do you want to 99, 250-255, and 501-1000 pruning eligible on the particular device: Console> (enable) 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 Step 2 Step 3 Step ...
Software Guide
Page 190
... Chapter 9 Configuring VTP • If a password is configured as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to a VTP instance. • A VTP version 3 domain can be partitioned. If a trunk is connected to a switch or server that the server, ...client, and transparent modes are described in detail in NVRAM. These features are specific to configure the domain. VTP Version 3 Domains, Modes, and Partitions The main differences between VTP version 3 domains and modes and VTP ...
... Chapter 9 Configuring VTP • If a password is configured as primary or secondary. • VTP version 3 modes (server, client, and transparent) are specific to a VTP instance. • A VTP version 3 domain can be partitioned. If a trunk is connected to a switch or server that the server, ...client, and transparent modes are described in detail in NVRAM. These features are specific to configure the domain. VTP Version 3 Domains, Modes, and Partitions The main differences between VTP version 3 domains and modes and VTP ...
Software Guide
Page 192
... information on page 9-16. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that has been ... of a misconfiguration or an independent configuration of a temporarily disconnected part of a misconfigured switch. If a new switch is specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on using the takeover mechanism to the instance...
... information on page 9-16. Understanding How VTP Version 3 Works Figure 9-4 VTP Version 3: Partitioned VTP Domain Domain Cisco Primary Server X Domain Cisco Primary Server Y Chapter 9 Configuring VTP 94282 Partitions exist because of discrepancies in the domain configuration that has been ... of a misconfiguration or an independent configuration of a temporarily disconnected part of a misconfigured switch. If a new switch is specific to reconfigure partitioned VTP domains, see the "Reconfiguring a Partitioned VTP Domain" section on using the takeover mechanism to the instance...
Software Guide
Page 193
... information if it might be one primary server controlling the entire VTP domain for this partitioned VTP domain, you for that instance. To reconfigure this specific instance. After a takeover, there should only be lost on some links (however, the takeover messages are potentially stored on page 9-28. Chapter 9 Configuring VTP Understanding...
... information if it might be one primary server controlling the entire VTP domain for this partitioned VTP domain, you for that instance. To reconfigure this specific instance. After a takeover, there should only be lost on some links (however, the takeover messages are potentially stored on page 9-28. Chapter 9 Configuring VTP Understanding...
Software Guide
Page 195
... The off mode, the VTP messages are tied to become a primary server. Note In software release 8.1(1), the only supported database propagation is specific to as the secondary servers ensure persistence of the configuration over a VTP domain. In both modes, you must issue a successful takeover from ... that VTP is designed to distribute any instance needs to an instance. VTP version 3 is controlling. The takeover mechanism is not specific to be modified. To reach the primary server state, you are received by VTP. This feature configuration will also appear in the...
... The off mode, the VTP messages are tied to become a primary server. Note In software release 8.1(1), the only supported database propagation is specific to as the secondary servers ensure persistence of the configuration over a VTP domain. In both modes, you must issue a successful takeover from ... that VTP is designed to distribute any instance needs to an instance. VTP version 3 is controlling. The takeover mechanism is not specific to be modified. To reach the primary server state, you are received by VTP. This feature configuration will also appear in the...
Software Guide
Page 205
When a port is specific to the VTP domain, and use the statistics keyword to enable or disable all trunks. Command set port vtp mod/port {enable | disable} show vtp ...
When a port is specific to the VTP domain, and use the statistics keyword to enable or disable all trunks. Command set port vtp mod/port {enable | disable} show vtp ...