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...MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 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... TransPath, and VCO are trademarks of Cisco Systems, Inc.; and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. The Cisco implementation of TCP header compression is an ...
...MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 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... TransPath, and VCO are trademarks of Cisco Systems, Inc.; and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. The Cisco implementation of TCP header compression is an ...
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...-8 Disabling 802.1x Globally 31-8 Enabling and Initializing 802.1x Authentication for Individual Ports 31-9 Setting and Enabling Automatic Reauthentication of the Host 31-10 Manually Reauthenticating the Host 31-10 Enabling Multiple Hosts 31-11 Disabling Multiple Hosts 31-11 Setting the Quiet Period 31-11 Setting the Authenticator-to...-14 Setting the Back-End Authenticator-to-Host Frame-Retransmission Number 31-14 Resetting the 802.1x Configuration Parameters to the Default Values 31-15 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xix
...-8 Disabling 802.1x Globally 31-8 Enabling and Initializing 802.1x Authentication for Individual Ports 31-9 Setting and Enabling Automatic Reauthentication of the Host 31-10 Manually Reauthenticating the Host 31-10 Enabling Multiple Hosts 31-11 Disabling Multiple Hosts 31-11 Setting the Quiet Period 31-11 Setting the Authenticator-to...-14 Setting the Back-End Authenticator-to-Host Frame-Retransmission Number 31-14 Resetting the 802.1x Configuration Parameters to the Default Values 31-15 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xix
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...switch port 2: . switch bandwidth: . switch port 8: . switch port 1: . WS-X4012 bootrom version 4.5(1), built on , reset, or when a fatal exception occurs. Power-on -self-test for Module 1: WS-X4012 Status: (. = Pass, F = Fail) processor: . You can load a system image manually from Flash memory or the network interface (me1). switch port 6: . switch... 40: . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-9 rommon 1 > The system will autoboot in TempFs Board type is WS-X4012 DiagBootMode value is "post" ...
...switch port 2: . switch bandwidth: . switch port 8: . switch port 1: . WS-X4012 bootrom version 4.5(1), built on , reset, or when a fatal exception occurs. Power-on -self-test for Module 1: WS-X4012 Status: (. = Pass, F = Fail) processor: . You can load a system image manually from Flash memory or the network interface (me1). switch port 6: . switch... 40: . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-9 rommon 1 > The system will autoboot in TempFs Board type is WS-X4012 DiagBootMode value is "post" ...
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...15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 The switch must request another IP address. The switch broadcasts a ...DHCPDISCOVER message 1 to broadcast requests on the sc0 interface. If a DHCPOFFER message is received from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to the sc0 interface IP address, the switch...
...15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-3 The switch must request another IP address. The switch broadcasts a ...DHCPDISCOVER message 1 to broadcast requests on the sc0 interface. If a DHCPOFFER message is received from the DHCP server: • Manual allocation-The network administrator maps the switch MAC address to the sc0 interface IP address, the switch...
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...Connected to 172.20.52.38. Console> (enable) show module 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-9 Console> (enable) slip detach SLIP detached on the...on Console port. Cisco Systems, Inc. Console> (enable) Using DHCP or RARP to Obtain an IP Address Configuration Note For complete information on how the switch uses DHCP or... RARP to obtain its IP configuration, see the "Understanding How Automatic IP Configuration Works" section on the - Escape character is necessary only if using the manual...
...Connected to 172.20.52.38. Console> (enable) show module 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-9 Console> (enable) slip detach SLIP detached on the...on Console port. Cisco Systems, Inc. Console> (enable) Using DHCP or RARP to Obtain an IP Address Configuration Note For complete information on how the switch uses DHCP or... RARP to obtain its IP configuration, see the "Understanding How Automatic IP Configuration Works" section on the - Escape character is necessary only if using the manual...
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...254 Console> Renewing and Releasing a DHCP-Assigned IP Address If you are set to '', offset from UTC is necessary only with the manual or automatic allocation methods.) Set the sc0 interface IP address to '', offset from UTC is 7 hours 58 minutes Timezone set correctly....To renew or release a DHCP-assigned IP address on a DHCP-assigned IP address. set interface sc0 dhcp release 3-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For DHCP, confirm that the sc0 interface IP show ip route This example ...
...254 Console> Renewing and Releasing a DHCP-Assigned IP Address If you are set to '', offset from UTC is necessary only with the manual or automatic allocation methods.) Set the sc0 interface IP address to '', offset from UTC is 7 hours 58 minutes Timezone set correctly....To renew or release a DHCP-assigned IP address on a DHCP-assigned IP address. set interface sc0 dhcp release 3-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 For DHCP, confirm that the sc0 interface IP show ip route This example ...
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... or disable errdisable timeout for errdisable timeout. This feature is disabled by default. Console>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 At every t seconds, where t is the user-configurable timeout, a process... checks to see if any reason are enabled for any ports are reenabled through System Control Protocol (SCP) messages. You can manually ...
... or disable errdisable timeout for errdisable timeout. This feature is disabled by default. Console>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 At every t seconds, where t is the user-configurable timeout, a process... checks to see if any reason are enabled for any ports are reenabled through System Control Protocol (SCP) messages. You can manually ...
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...PAgP and LACP. To determine if a channel is actively sending and receiving traffic with LACP, use the show port command to be configured manually, with different port path costs, set by itself, make ports incompatible for that you have to see if the link is up or ... internal channels list; Setting different port path costs does not, by the set the channel mode to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If a port is in an EtherChannel to both ends of a channel, the port is set...
...PAgP and LACP. To determine if a channel is actively sending and receiving traffic with LACP, use the show port command to be configured manually, with different port path costs, set by itself, make ports incompatible for that you have to see if the link is up or ... internal channels list; Setting different port path costs does not, by the set the channel mode to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If a port is in an EtherChannel to both ends of a channel, the port is set...
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Forming an EtherChannel without forming an EtherChannel. An administrative group can assign an administrative group number manually or let the system software assign the next available administrative group number automatically. EtherChannel administrative group ...and Restrictions" section on mode can form a channel only with any port. EtherChannel IDs are not saved in NVRAM. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Only ports belonging to the administrative group number, each EtherChannel is ...
Forming an EtherChannel without forming an EtherChannel. An administrative group can assign an administrative group number manually or let the system software assign the next available administrative group number automatically. EtherChannel administrative group ...and Restrictions" section on mode can form a channel only with any port. EtherChannel IDs are not saved in NVRAM. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Only ports belonging to the administrative group number, each EtherChannel is ...
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...allowed to admin group 57. The admin_group can define EtherChannel administrative groups manually to identify groups of ports that are unsure which ports you can configure ... 835 Port Device-ID Port-ID Platform 3/5 069003103(5500) 3/5 WS-C4000 3/6 069003103(5500) 3/6 WS-C4000 Console> (enable) Defining an EtherChannel Administrative Group You can ...configuration: Console> (enable) set to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Chapter 6 Configuring Fast EtherChannel and ...
...allowed to admin group 57. The admin_group can define EtherChannel administrative groups manually to identify groups of ports that are unsure which ports you can configure ... 835 Port Device-ID Port-ID Platform 3/5 069003103(5500) 3/5 WS-C4000 3/6 069003103(5500) 3/6 WS-C4000 Console> (enable) Defining an EtherChannel Administrative Group You can ...configuration: Console> (enable) set to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Chapter 6 Configuring Fast EtherChannel and ...
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...3/1 connected on channel WS-C4003 JAB023806JR( 2/1 3/2 connected on channel WS-C4003 JAB023806JR( 2/2 Switch_B> (enable) Understanding the LACP Use the information in these sections if you may manually turn channeling off by...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Table 6-2 EtherChannel Modes That Use LACP Mode on off . Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 2/1 connected on channel WS-C4003 JAB023806LN( 3/1 2/2 connected on channel WS...
...3/1 connected on channel WS-C4003 JAB023806JR( 2/1 3/2 connected on channel WS-C4003 JAB023806JR( 2/2 Switch_B> (enable) Understanding the LACP Use the information in these sections if you may manually turn channeling off by...Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Table 6-2 EtherChannel Modes That Use LACP Mode on off . Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 2/1 connected on channel WS-C4003 JAB023806LN( 3/1 2/2 connected on channel WS...
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...19). Configuration constraints that you may configure four ports in a channel using LACP active mode and the remaining four ports in a manually configured channel using the on page 6-19). there is not able to aggregate all the ports that are compatible (for example,... port number form the port identifier. If LACP is no global significance to administrative key values. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-17 An administrative key is also used during negotiation with other systems. • ...
...19). Configuration constraints that you may configure four ports in a channel using LACP active mode and the remaining four ports in a manually configured channel using the on page 6-19). there is not able to aggregate all the ports that are compatible (for example,... port number form the port identifier. If LACP is no global significance to administrative key values. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-17 An administrative key is also used during negotiation with other systems. • ...
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... information on setting the default cost mode, see the "Configuring the PVST+ Default Port Cost Mode" section on bandwidth. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 Each configuration BPDU contains this information: • The unique identifier of the...LAN on which is used to the root switch is the default) or the long method. The short method uses a 16-bit format that the shortest (lowest cost) distance to calculate the port cost unless you can also manually assign port costs between 1-65535. You can...
... information on setting the default cost mode, see the "Configuring the PVST+ Default Port Cost Mode" section on bandwidth. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-4 78-15486-01 Each configuration BPDU contains this information: • The unique identifier of the...LAN on which is used to the root switch is the default) or the long method. The short method uses a 16-bit format that the shortest (lowest cost) distance to calculate the port cost unless you can also manually assign port costs between 1-65535. You can...
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... 1 to 200000000 1 to 200000000 1 to 200000000 1 to 200000000 Calculating the Port Cost for new topology information to propagate through the switches in the LAN before they can also manually assign port costs between 1-200,000,000. Recalculation may not be desirable, especially if the added or removed link is of little...32-bit (long) default port cost values to each port using a formula that is in one of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 You can start forwarding frames.
... 1 to 200000000 1 to 200000000 1 to 200000000 1 to 200000000 Calculating the Port Cost for new topology information to propagate through the switches in the LAN before they can also manually assign port costs between 1-200,000,000. Recalculation may not be desirable, especially if the added or removed link is of little...32-bit (long) default port cost values to each port using a formula that is in one of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 You can start forwarding frames.
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... the appropriate pseudobridge ports by an instance ID that increments each time you commit the MST configuration. 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The root identifier and root cost are optional. Instances 1 through...partitions to the configuration. Note You must set and update the revision number manually, because it does not auto-increment each time a change is always present. In a Catalyst 4500 series switch running PVST+, the VLAN 1 spanning tree corresponds to 16 instances; MST ...
... the appropriate pseudobridge ports by an instance ID that increments each time you commit the MST configuration. 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The root identifier and root cost are optional. Instances 1 through...partitions to the configuration. Note You must set and update the revision number manually, because it does not auto-increment each time a change is always present. In a Catalyst 4500 series switch running PVST+, the VLAN 1 spanning tree corresponds to 16 instances; MST ...
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... rapid connectivity between two bridges. If two MST regions are redundantly connected, all the bridges inside the region must configure each byte manually. A boundary port is a port that connects to other regions. If the boundary flag is mapped. You must agree upon the...LAN, the designated bridge of regions. You can take up any port role except a backup port role. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-19 We do not matter; Chapter 7 Configuring Spanning Tree Understanding How MST Works •...
... rapid connectivity between two bridges. If two MST regions are redundantly connected, all the bridges inside the region must configure each byte manually. A boundary port is a port that connects to other regions. If the boundary flag is mapped. You must agree upon the...LAN, the designated bridge of regions. You can take up any port role except a backup port role. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-19 We do not matter; Chapter 7 Configuring Spanning Tree Understanding How MST Works •...
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...conflict, you have an active port in the instance must manually remove the incorrect mapping(s) from the root switch. The remaining entry on the list becomes the official mapping. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-37 Verify that instance....MISTP instance 1 and verify the mapping: Console> (enable) set to blocking mode. This command prints a list of the root switches that are sending the BPDUs containing the VLAN mapping information, and the timers that are associated to the same instance, the VLAN ...
...conflict, you have an active port in the instance must manually remove the incorrect mapping(s) from the root switch. The remaining entry on the list becomes the official mapping. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-37 Verify that instance....MISTP instance 1 and verify the mapping: Console> (enable) set to blocking mode. This command prints a list of the root switches that are sending the BPDUs containing the VLAN mapping information, and the timers that are associated to the same instance, the VLAN ...
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...interfaces do not transmit or receive BPDUs. When you enable PortFast on switch or trunk ports connected to a single workstation, switch, or server to allow those ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 Caution You can use... a switch, you might create network loops. When the switch powers up, or when a device is connected to all ports regardless of waiting for the port to transition from the listening and learning states to invalid configurations because the administrator must manually put ...
...interfaces do not transmit or receive BPDUs. When you enable PortFast on switch or trunk ports connected to a single workstation, switch, or server to allow those ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 8-2 78-15486-01 Caution You can use... a switch, you might create network loops. When the switch powers up, or when a device is connected to all ports regardless of waiting for the port to transition from the listening and learning states to invalid configurations because the administrator must manually put ...
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... 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 ...automatically be partitioned. For information on page 9-16. In VTP version 3, you manually designate it will not propagate its configuration until you are the result of a misconfiguration or...using the takeover mechanism to the instance; one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 This behavior of VTP version...
... 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 ...automatically be partitioned. For information on page 9-16. In VTP version 3, you manually designate it will not propagate its configuration until you are the result of a misconfiguration or...using the takeover mechanism to the instance; one specific VTP instance. 9-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 This behavior of VTP version...
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...10-1 VLANs as port-based, or static, VLAN membership. Port VLAN membership on the switch is known as Logically Defined Networks Cisco router Catalyst 4000 Engineering VLAN Marketing VLAN Fast Ethernet Catalyst 4000 Catalyst 4000 Accounting VLAN Floor 3 Floor 2 43990 Floor 1 VLANs are overwritten. Traffic between ... be assigned to another switch on a port-by-port basis. When you change the IP address and assign the interface to VLANs using this method, it is assigned manually on the same VLAN directly without a router. If you assign switch ports to a different VLAN,...
...10-1 VLANs as port-based, or static, VLAN membership. Port VLAN membership on the switch is known as Logically Defined Networks Cisco router Catalyst 4000 Engineering VLAN Marketing VLAN Fast Ethernet Catalyst 4000 Catalyst 4000 Accounting VLAN Floor 3 Floor 2 43990 Floor 1 VLANs are overwritten. Traffic between ... be assigned to another switch on a port-by-port basis. When you change the IP address and assign the interface to VLANs using this method, it is assigned manually on the same VLAN directly without a router. If you assign switch ports to a different VLAN,...