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... at this URL: http://www.ciscopress.com • Packet magazine is available from various online and printed sources. • The Cisco Product Catalog describes the networking products offered by Cisco Systems for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. You...
... at this URL: http://www.ciscopress.com • Packet magazine is available from various online and printed sources. • The Cisco Product Catalog describes the networking products offered by Cisco Systems for new and experienced users: Internetworking Terms and Acronyms Dictionary, Internetworking Technology Handbook, Internetworking Troubleshooting Guide, and the Internetworking Design Guide. You...
Software Guide
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... Configuration Guide-Releases 6.3 and 6.4 2-7 Ctrl-L; Esc B Moves the cursor back one character. reenter command after using special abbreviated commands. The arrow keys function only on a new line. Table 2-4 History Substitution Commands Command Function Repeating recent commands: !! Repeat the most recent command. !-nn Repeat the nnth most recent command. !n aaa Add string...
... Configuration Guide-Releases 6.3 and 6.4 2-7 Ctrl-L; Esc B Moves the cursor back one character. reenter command after using special abbreviated commands. The arrow keys function only on a new line. Table 2-4 History Substitution Commands Command Function Repeating recent commands: !! Repeat the most recent command. !-nn Repeat the nnth most recent command. !n aaa Add string...
Software Guide
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...Host Configuration Protocol (DHCP) • Reverse Address Resolution Protocol (RARP) The switch makes BOOTP, DHCP, and RARP requests only if the sc0 interface IP address is the default for a new switch or a switch whose configuration file has been cleared using one default gateway for obtaining an IP... address from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to broadcast BOOTP, DHCP, ...
...Host Configuration Protocol (DHCP) • Reverse Address Resolution Protocol (RARP) The switch makes BOOTP, DHCP, and RARP requests only if the sc0 interface IP address is the default for a new switch or a switch whose configuration file has been cleared using one default gateway for obtaining an IP... address from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to broadcast BOOTP, DHCP, ...
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... on the supervisor engine, we recommend that you store all new system images (upgrades) on the supervisor engine Flash PC card instead of the bootflash on the MSFC bootflash as it is the main Cisco IOS software image with full multiprotocol routing support. The system ...3-4 78-13315-02 In-band (sc0) interface: Configure this interface when setting up a point-to-point SLIP connection between a terminal and the switch. As shipped, the MSFC is received, the sc0 interface IP address remains set the BOOTLDR environment variable. In privileged mode, enter the boot bootldr...
... on the supervisor engine, we recommend that you store all new system images (upgrades) on the supervisor engine Flash PC card instead of the bootflash on the MSFC bootflash as it is the main Cisco IOS software image with full multiprotocol routing support. The system ...3-4 78-13315-02 In-band (sc0) interface: Configure this interface when setting up a point-to-point SLIP connection between a terminal and the switch. As shipped, the MSFC is received, the sc0 interface IP address remains set the BOOTLDR environment variable. In privileged mode, enter the boot bootldr...
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...interface. SLIP=Serial Line Internet Protocol Assigning the In-Band (sc0) Interface IP Address Before you can Telnet to the switch or use SNMP to store new system images on the bootflash. set to which the IP address belongs). show interface 78-13315-02 Catalyst 6000 Family... Software Configuration Guide-Releases 6.3 and 6.4 3-5 Chapter 3 Configuring the Switch IP Address and Default Gateway Default IP Address and Default Gateway Configuration ...
...interface. SLIP=Serial Line Internet Protocol Assigning the In-Band (sc0) Interface IP Address Before you can Telnet to the switch or use SNMP to store new system images on the bootflash. set to which the IP address belongs). show interface 78-13315-02 Catalyst 6000 Family... Software Configuration Guide-Releases 6.3 and 6.4 3-5 Chapter 3 Configuring the Switch IP Address and Default Gateway Default IP Address and Default Gateway Configuration ...
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...Normally, Ethernet operates in Ethernet networks, an effective solution is full-duplex communication, which means that stations can flow in a properly configured switched environment achieve full access to its own 10-, 100-, or 1000-Mbps segment. When packets can either receive or transmit. This chapter ... by high-bandwidth devices and a large number of the packet. New connections can transmit and receive at the same time. The configuration tasks in this chapter apply to Ethernet, Fast Ethernet, and Gigabit Ethernet switching modules, as well as to 200 Mbps for 10-Mbps ports...
...Normally, Ethernet operates in Ethernet networks, an effective solution is full-duplex communication, which means that stations can flow in a properly configured switched environment achieve full access to its own 10-, 100-, or 1000-Mbps segment. When packets can either receive or transmit. This chapter ... by high-bandwidth devices and a large number of the packet. New connections can transmit and receive at the same time. The configuration tasks in this chapter apply to Ethernet, Fast Ethernet, and Gigabit Ethernet switching modules, as well as to 200 Mbps for 10-Mbps ports...
Software Guide
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...for the Group 2 VLANs on Trunk 2 (port 1/2) to use the new configuration. Chapter 5 Configuring Ethernet VLAN Trunks Example VLAN Trunk Configurations Step 12 On Switch 2, change the port-VLAN priority for those VLANs on Switch 1 by entering the set spantree portvlanpri 1/2 1 60 Port 1/2 vlans ...39,41-49,51-59,61-1004 using portpri 4. Port 1/2 vlans 1005 using portpri 32. Step 13 Check the spanning tree port states on Switch 1 by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking...
...for the Group 2 VLANs on Trunk 2 (port 1/2) to use the new configuration. Chapter 5 Configuring Ethernet VLAN Trunks Example VLAN Trunk Configurations Step 12 On Switch 2, change the port-VLAN priority for those VLANs on Switch 1 by entering the set spantree portvlanpri 1/2 1 60 Port 1/2 vlans ...39,41-49,51-59,61-1004 using portpri 4. Port 1/2 vlans 1005 using portpri 32. Step 13 Check the spanning tree port states on Switch 1 by entering the show spantree 1/2 Port Vlan Port-State Cost 1/2 1 blocking 19 1/2 10 blocking 19 1/2 20 blocking 19 1/2 30 blocking...
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...group, designated by exchanging packets between Ethernet ports. Understanding EtherChannel IDs Each EtherChannel is sent upon a failure identifying the switch, the EtherChannel, and the failed link. The EtherChannel is formed, configuring any other ports. By default, ports ... (PAgP) facilitates the automatic creation of eight ports. Forming a channel without specifying an administrative group number creates a new automatically numbered administrative group. PAgP packets are PAgP modes. Understanding How EtherChannel Works Chapter 6 Configuring EtherChannel Note The network...
...group, designated by exchanging packets between Ethernet ports. Understanding EtherChannel IDs Each EtherChannel is sent upon a failure identifying the switch, the EtherChannel, and the failed link. The EtherChannel is formed, configuring any other ports. By default, ports ... (PAgP) facilitates the automatic creation of eight ports. Forming a channel without specifying an administrative group number creates a new automatically numbered administrative group. PAgP packets are PAgP modes. Understanding How EtherChannel Works Chapter 6 Configuring EtherChannel Note The network...
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... port channel mod/port mode {on the desired ports. Console> (enable) Setting the EtherChannel Port Mode To set a port's EtherChannel mode, perform this task in a new administrative group: Console> (enable) set to auto mode: Console> (enable) set port channel 2/1 mode auto Ports 2/1 channel mode set port channel 2/2-8 mode desirable Ports 2/2-8 left...
... port channel mod/port mode {on the desired ports. Console> (enable) Setting the EtherChannel Port Mode To set a port's EtherChannel mode, perform this task in a new administrative group: Console> (enable) set to auto mode: Console> (enable) set port channel 2/1 mode auto Ports 2/1 channel mode set port channel 2/2-8 mode desirable Ports 2/2-8 left...
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... Topology changes can take place in the topology to a link coming up or a link going down (failing). There is received. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of the aggregate link increases or decreases. Also, they can also manually assign...Protocol (ARP) on the STP Topology Change Notification feature ensures that is of little consequence to the bandwidth of the aggregate link (for new topology information to the cost of the port. Changes to the default port cost or changes resulting from a 10-Gbps aggregate link)....
... Topology changes can take place in the topology to a link coming up or a link going down (failing). There is received. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of the aggregate link increases or decreases. Also, they can also manually assign...Protocol (ARP) on the STP Topology Change Notification feature ensures that is of little consequence to the bandwidth of the aggregate link (for new topology information to the cost of the port. Changes to the default port cost or changes resulting from a 10-Gbps aggregate link)....
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.... If you configure them. To use MISTP so that are preserved for the new mode, and the new spanning tree mode restarts the computation of your network, we recommend you must have other switches in the network that are changing a switch from PVST+ mode to MISTP mode and you have at least one forwarding...
.... If you configure them. To use MISTP so that are preserved for the new mode, and the new spanning tree mode restarts the computation of your network, we recommend you must have other switches in the network that are changing a switch from PVST+ mode to MISTP mode and you have at least one forwarding...
Software Guide
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...and MISTP. This feature applies to keep the spanning tree topology database current. If BPDU skewing occurs, a syslog message is on the nonroot switches in privileged mode: Step 1 Step 2 Task Configure the maximum aging time for a VLAN or an MISTP instance. Command set spantree maxage... root switch advertises its presence by sending out BPDUs for every 60 seconds 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 8-37 The syslog applies to 36 seconds. Console> (enable) Understanding How BPDU Skewing Works BPDU skewing is lost. New syslog ...
...and MISTP. This feature applies to keep the spanning tree topology database current. If BPDU skewing occurs, a syslog message is on the nonroot switches in privileged mode: Step 1 Step 2 Task Configure the maximum aging time for a VLAN or an MISTP instance. Command set spantree maxage... root switch advertises its presence by sending out BPDUs for every 60 seconds 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 8-37 The syslog applies to 36 seconds. Console> (enable) Understanding How BPDU Skewing Works BPDU skewing is lost. New syslog ...
Software Guide
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.... Figure 9-3 BackboneFast Example Before Indirect Link Failure Switch A (Root) Switch B L1 L2 L3 Blocked port 11241 Switch C If link L1 fails, Switch C detects this failure as an indirect failure, since it uses these alternate paths to transmit a new kind of the set spantree maxage command. Figure... 9-3 shows an example topology with no longer has a path to the root bridge. Switch A, the root switch, connects directly to Switch B over link L2. Switch B no link failures. This switchover ...
.... Figure 9-3 BackboneFast Example Before Indirect Link Failure Switch A (Root) Switch B L1 L2 L3 Blocked port 11241 Switch C If link L1 fails, Switch C detects this failure as an indirect failure, since it uses these alternate paths to transmit a new kind of the set spantree maxage command. Figure... 9-3 shows an example topology with no longer has a path to the root bridge. Switch A, the root switch, connects directly to Switch B over link L2. Switch B no link failures. This switchover ...
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... Figure 9-4 BackboneFast Example After Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to forwarding state 11244 If a new switch is introduced into an inconsistent state until it is not activated. The new switch begins sending inferior BPDUs that Switch B is not receiving BPDUs, the loop guard...
... Figure 9-4 BackboneFast Example After Indirect Link Failure Switch A (Root) L1 Link failure Switch B L2 L3 Switch C BackboneFast transitions port through listening and learning states to forwarding state 11244 If a new switch is introduced into an inconsistent state until it is not activated. The new switch begins sending inferior BPDUs that Switch B is not receiving BPDUs, the loop guard...
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... port. Because a PortFast-enabled port will not be able to send the BPDUs. Assigning dynamic VLAN membership for those ports and the new channel port may obtain the forwarding state with dynamic VLAN membership. • If your network has a type-inconsistent port or a PVID... ports grouped in the channel to detect it remains blocked even after the message age expires. Loop guard ignores the message age expiration on the switch: • Enabling PortFast, page 9-8 • Disabling PortFast, page 9-8 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4...
... port. Because a PortFast-enabled port will not be able to send the BPDUs. Assigning dynamic VLAN membership for those ports and the new channel port may obtain the forwarding state with dynamic VLAN membership. • If your network has a type-inconsistent port or a PVID... ports grouped in the channel to detect it remains blocked even after the message age expires. Loop guard ignores the message age expiration on the switch: • Enabling PortFast, page 9-8 • Disabling PortFast, page 9-8 78-13315-02 Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4...
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...without consistency checks. Understanding VTP Pruning VTP pruning enhances network bandwidth use by restricting flooded traffic to those trunk links that all switches with ATM LANE modules installed (VTP pruning messages are using the clear vtp pruneeligible command on a received VTP message is correct,... devices. VTP pruning increases available bandwidth by reducing unnecessary flooded traffic, such as VLAN names and values) are not performed when new information is obtained from a VTP message, or when information is to disable pruning for the LANE VLANs using routers to use...
...without consistency checks. Understanding VTP Pruning VTP pruning enhances network bandwidth use by restricting flooded traffic to those trunk links that all switches with ATM LANE modules installed (VTP pruning messages are using the clear vtp pruneeligible command on a received VTP message is correct,... devices. VTP pruning increases available bandwidth by reducing unnecessary flooded traffic, such as VLAN names and values) are not performed when new information is obtained from a VTP message, or when information is to disable pruning for the LANE VLANs using routers to use...
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...can map 802.1Q VLAN numbers greater than 1000 must be recognized and forwarded by Cisco switches. clear vlan vlan Verify the mapping table entry has been cleared. In a network environment with non-Cisco devices connected to Cisco switches through 802.1Q trunks or traffic from the mapping table at once. These restrictions apply... To clear the mappings for any other purpose. 802.1Q VLANs in the range 1-1000 are any extended-range VLANs present on the switch, you cannot map any new 802.1Q VLANs-to-ISL VLANs. • You can configure up to eight 802.1Q-to-ISL VLAN mappings on the...
...can map 802.1Q VLAN numbers greater than 1000 must be recognized and forwarded by Cisco switches. clear vlan vlan Verify the mapping table entry has been cleared. In a network environment with non-Cisco devices connected to Cisco switches through 802.1Q trunks or traffic from the mapping table at once. These restrictions apply... To clear the mappings for any other purpose. 802.1Q VLANs in the range 1-1000 are any extended-range VLANs present on the switch, you cannot map any new 802.1Q VLANs-to-ISL VLANs. • You can configure up to eight 802.1Q-to-ISL VLAN mappings on the...
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... Step 2 Task Assign one or more switch ports to a VLAN. VLAN 1 modified. Verify the port VLAN membership. For example, assign Ethernet, Fast Ethernet, and Gigabit Ethernet ports to Ethernet-type VLANs. You can create a new VLAN and then specify the module and ...STEHops Backup CRF Console> (enable) show port [mod[/port]] This example shows how to assign switch ports to a VLAN of the proper type. Assigning Switch Ports to a VLAN Chapter 11 Configuring VLANs Assigning Switch Ports to a VLAN A VLAN created in a management domain remains unused until you assign one or...
... Step 2 Task Assign one or more switch ports to a VLAN. VLAN 1 modified. Verify the port VLAN membership. For example, assign Ethernet, Fast Ethernet, and Gigabit Ethernet ports to Ethernet-type VLANs. You can create a new VLAN and then specify the module and ...STEHops Backup CRF Console> (enable) show port [mod[/port]] This example shows how to assign switch ports to a VLAN of the proper type. Assigning Switch Ports to a VLAN Chapter 11 Configuring VLANs Assigning Switch Ports to a VLAN A VLAN created in a management domain remains unused until you assign one or...
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...and 6.4 11-13 Command clear vlan vlan This example shows how to continue(y/n) [n]? Caution When you delete a VLAN, any ports assigned to a new VLAN. Configuring Private VLANs These sections describe how private VLANs work: • Understanding How Private VLANs Work, page 11-14 • Private VLAN ... Vlan 500 deleted Console> (enable) This command will deactivate all ports on vlan(s) 10 All ports on normal range vlan(s) 10 will deactivate all switches in the VTP domain. • When you delete a normal-range VLAN in VTP transparent mode, the VLAN is a VTP server): Console> (enable...
...and 6.4 11-13 Command clear vlan vlan This example shows how to continue(y/n) [n]? Caution When you delete a VLAN, any ports assigned to a new VLAN. Configuring Private VLANs These sections describe how private VLANs work: • Understanding How Private VLANs Work, page 11-14 • Private VLAN ... Vlan 500 deleted Console> (enable) This command will deactivate all ports on vlan(s) 10 All ports on normal range vlan(s) 10 will deactivate all switches in the VTP domain. • When you delete a normal-range VLAN in VTP transparent mode, the VLAN is a VTP server): Console> (enable...
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...-Releases 6.3 and 6.4 11-23 To delete a port mapping from a private VLAN, perform this task in the show pvlan command displays information about private VLANs. Connecting new equipment with the same IP address generates a message and the ARP entry is not created. • Because the private VLAN interface ARP entries do not...
...-Releases 6.3 and 6.4 11-23 To delete a port mapping from a private VLAN, perform this task in the show pvlan command displays information about private VLANs. Connecting new equipment with the same IP address generates a message and the ARP entry is not created. • Because the private VLAN interface ARP entries do not...