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... for executives. Included are listed at this URL: http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxx 78-15486-01 Current offerings ...this URL: http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html • Training-Cisco offers world-class networking training. Obtaining Additional Publications and Information Information about Internet business strategies for new and experienced users: Internetworking ...
... for executives. Included are listed at this URL: http://www.cisco.com/en/US/learning/le31/learning_recommended_training_list.html Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxx 78-15486-01 Current offerings ...this URL: http://www.cisco.com/en/US/about/ac123/ac147/about_cisco_the_internet_protocol_journal.html • Training-Cisco offers world-class networking training. Obtaining Additional Publications and Information Information about Internet business strategies for new and experienced users: Internetworking ...
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... of valid keywords and arguments for the switch. To see the "Accessing the Switch CLI" section on page 2-2). alias dns fragmentation http Set alias for the switch. You will see the commands available in privileged mode. Cisco Systems Console Fri Aug 27 1999, 16...Set DNS information Set IP fragmentation enable/disable Set IP HTTP server information Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-4 78-15486-01 in normal or privileged mode to a new switch, press Return at the Enter Password prompt. to normal mode, enter...
... of valid keywords and arguments for the switch. To see the "Accessing the Switch CLI" section on page 2-2). alias dns fragmentation http Set alias for the switch. You will see the commands available in privileged mode. Cisco Systems Console Fri Aug 27 1999, 16...Set DNS information Set IP fragmentation enable/disable Set IP HTTP server information Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-4 78-15486-01 in normal or privileged mode to a new switch, press Return at the Enter Password prompt. to normal mode, enter...
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... prompt to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Esc F Moves the cursor forward one character. configure copy Console... ? Ctrl-U; The system displays all commands that begin with co. To use when entering and editing switch commands. Chapter 2 Using the Command-Line Interface Command-Line Editing permit redirect route unreachable Console> (enable...Delete key or Backspace key Erases characters on a new line. at the cursor.
... prompt to display a list of commands that start with co, as VT100s. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-5 Esc F Moves the cursor forward one character. configure copy Console... ? Ctrl-U; The system displays all commands that begin with co. To use when entering and editing switch commands. Chapter 2 Using the Command-Line Interface Command-Line Editing permit redirect route unreachable Console> (enable...Delete key or Backspace key Erases characters on a new line. at the cursor.
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...are allowed on both the sc0 and me1 interfaces, the me1 interface is configured down. The switch IP routing table is the default for a new switch or a switch whose configuration file has been cleared using one default gateway for example, sc0 with IP address 10...sc0 interface. Therefore, when you enter a command that is opened from a workstation. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-2 78-15486-01 However, when the switch boots with IP address 10.1.1.2 and subnet mask 255.255.255.0). Note If the ...
...are allowed on both the sc0 and me1 interfaces, the me1 interface is configured down. The switch IP routing table is the default for a new switch or a switch whose configuration file has been cleared using one default gateway for example, sc0 with IP address 10...sc0 interface. Therefore, when you enter a command that is opened from a workstation. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-2 78-15486-01 However, when the switch boots with IP address 10.1.1.2 and subnet mask 255.255.255.0). Note If the ...
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... to configure Ethernet and Fast Ethernet switching on installing Catalyst 4500 series Fast Ethernet modules, refer to the Catalyst 4500 Series Installation Guide. New connections can be made between Ethernet segments. Note For complete syntax and usage information for the next packet. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-1 The...
... to configure Ethernet and Fast Ethernet switching on installing Catalyst 4500 series Fast Ethernet modules, refer to the Catalyst 4500 Series Installation Guide. New connections can be made between Ethernet segments. Note For complete syntax and usage information for the next packet. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-1 The...
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... a port is 30 to 86,400 seconds (30 seconds to 24 hours). Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports This example shows how to display the per-port debounce timer settings: Console> (enable... set port errdisable-timeout mod/port disable command. With the new timeout enhancement, you can manually prevent a particular port from being enabled by default. Console>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 This feature is the user...
... a port is 30 to 86,400 seconds (30 seconds to 24 hours). Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports This example shows how to display the per-port debounce timer settings: Console> (enable... set port errdisable-timeout mod/port disable command. With the new timeout enhancement, you can manually prevent a particular port from being enabled by default. Console>(enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-7 This feature is the user...
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.... Follow the guidelines below to avoid configuration problems. Note Except where noted, these guidelines apply to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If you disable a port in an EtherChannel, it is treated as a link failure and its... run two protocols on the same module. • Ensure that all ports in an EtherChannel to the default channel mode for the new protocol. • Configure all its internal channels list; To get the port to join spanning tree, either set the duplex to ...
.... Follow the guidelines below to avoid configuration problems. Note Except where noted, these guidelines apply to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 If you disable a port in an EtherChannel, it is treated as a link failure and its... run two protocols on the same module. • Ensure that all ports in an EtherChannel to the default channel mode for the new protocol. • Configure all its internal channels list; To get the port to join spanning tree, either set the duplex to ...
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... an EtherChannel. You can define an EtherChannel administrative group without specifying an administrative group number creates a new automatically numbered administrative group consisting of eight ports. EtherChannel administrative group numbers are stored in NVRAM. EtherChannel... the next available administrative group number automatically. Only ports belonging to display the EtherChannel ID. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Configuring EtherChannel Using PAgP Chapter 6 Configuring ...
... an EtherChannel. You can define an EtherChannel administrative group without specifying an administrative group number creates a new automatically numbered administrative group consisting of eight ports. EtherChannel administrative group numbers are stored in NVRAM. EtherChannel... the next available administrative group number automatically. Only ports belonging to display the EtherChannel ID. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Configuring EtherChannel Using PAgP Chapter 6 Configuring ...
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... 1-65,535, where higher numbers represent lower priority. Console> (enable) Use the show lacp-channel sys-id command to "passive." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-19 Across the module, ports must be a number in the range of 1-255, where higher numbers represent lower priority... the 1st, 5th, 9th and so on modules running PAgP. To specify the system priority, perform this task in NVRAM is ignored on , are assigned new values automatically.
... 1-65,535, where higher numbers represent lower priority. Console> (enable) Use the show lacp-channel sys-id command to "passive." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-19 Across the module, ports must be a number in the range of 1-255, where higher numbers represent lower priority... the 1st, 5th, 9th and so on modules running PAgP. To specify the system priority, perform this task in NVRAM is ignored on , are assigned new values automatically.
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...especially if the added or removed link is of little consequence to the bandwidth of the aggregate link (for new topology information to propagate through the switches in changes to divide the bandwidth of the port concerned. Table 7-2 Default Port Cost Values Using the ...costs is removed from an aggregate link (port bundle), the bandwidth of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 At any given time, each port on the port bandwidth. Understanding Spanning Tree Port ...
...especially if the added or removed link is of little consequence to the bandwidth of the aggregate link (for new topology information to propagate through the switches in changes to divide the bandwidth of the port concerned. Table 7-2 Default Port Cost Values Using the ...costs is removed from an aggregate link (port bundle), the bandwidth of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-5 At any given time, each port on the port bandwidth. Understanding Spanning Tree Port ...
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... Spanning Tree Protocol (RSTP), and the Cisco PVST+ architecture. Therefore, MST requires that is the VLAN number and can vary from a Catalyst 4006 Switch to participate in the new Catalyst 4500 series switch, then the switch remains the root switch and the spanning tree topology does not... ID extension is added to as in different parts of the new Catalyst 4500 series switch increments in the same manner as an MST region. 7-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding How MST Works...
... Spanning Tree Protocol (RSTP), and the Cisco PVST+ architecture. Therefore, MST requires that is the VLAN number and can vary from a Catalyst 4006 Switch to participate in the new Catalyst 4500 series switch, then the switch remains the root switch and the spanning tree topology does not... ID extension is added to as in different parts of the new Catalyst 4500 series switch increments in the same manner as an MST region. 7-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding How MST Works...
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...no role within the operation of spanning tree. A new root port and the designated port on that is connected to forwarding directly when the switch reinitializes. RSTP Port Roles RSTP uses the following the failure of a switch, switch port, or a LAN. RSTP provides rapid connectivity ...the active topology. • An alternate port or backup port role excludes the port from the active topology. 7-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 RSTP BPDUs are received on a port and receives an RSTP BPDU after ...
...no role within the operation of spanning tree. A new root port and the designated port on that is connected to forwarding directly when the switch reinitializes. RSTP Port Roles RSTP uses the following the failure of a switch, switch port, or a LAN. RSTP provides rapid connectivity ...the active topology. • An alternate port or backup port role excludes the port from the active topology. 7-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 RSTP BPDUs are received on a port and receives an RSTP BPDU after ...
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... to VLAN 0 and the 4096th byte that connects an MST region to as an MST region. When you discard the existing edit buffer and acquire a new edit buffer by a LAN. There is not as fast as an MST bridge. To form an MST region, bridges can process MST BPDUs. A LAN's ... MST bridge that is the only member 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 An MST bridge accepts an MST BPDU only if the MST BPDU configuration ID and the checksum match...
... to VLAN 0 and the 4096th byte that connects an MST region to as an MST region. When you discard the existing edit buffer and acquire a new edit buffer by a LAN. There is not as fast as an MST bridge. To form an MST region, bridges can process MST BPDUs. A LAN's ... MST bridge that is the only member 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 An MST bridge accepts an MST BPDU only if the MST BPDU configuration ID and the checksum match...
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...Spanning tree uses the Hello Time (see the "Configuring the Maximum Aging Time" section on Ethernet VLANs. 7-22 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The skew causes BPDUs to reflood the network to two different MST ...+ PVST+ is the default spanning tree mode for Catalyst 4500 series switches. If BPDU skewing occurs, a syslog message is on the switch, the syslog messages are not received. • Spanning tree detects topology changes. New syslog messages are generated may impact the convergence of ...
...Spanning tree uses the Hello Time (see the "Configuring the Maximum Aging Time" section on Ethernet VLANs. 7-22 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 The skew causes BPDUs to reflood the network to two different MST ...+ PVST+ is the default spanning tree mode for Catalyst 4500 series switches. If BPDU skewing occurs, a syslog message is on the switch, the syslog messages are not received. • Spanning tree detects topology changes. New syslog messages are generated may impact the convergence of ...
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...-VLAN basis in PVST+ Same as port cost but configurable on a per-VLAN basis in PVST+ 20 sec 7-30 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Default MISTP Mode Configuration Table 7-5 shows the default configuration for the MISTP instance...you carefully follow the procedures that are preserved for the new mode, and the new spanning tree mode restarts the computation of connectivity in order for MISTP and MISTP-PVST+ modes. You must have other switches in the network that are using PVST+, you must first...
...-VLAN basis in PVST+ Same as port cost but configurable on a per-VLAN basis in PVST+ 20 sec 7-30 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Default MISTP Mode Configuration Table 7-5 shows the default configuration for the MISTP instance...you carefully follow the procedures that are preserved for the new mode, and the new spanning tree mode restarts the computation of connectivity in order for MISTP and MISTP-PVST+ modes. You must have other switches in the network that are using PVST+, you must first...
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...---------- 6/1 1 forwarding 4 32 disabled 0 6/2 1 blocking 4 32 disabled 0 Console> (enable) 7-46 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 show spantree mst instance Verify your configuration. set spantree mst instance vlan... vlan Commit the new region mapping. Configuring MST Chapter 7 Configuring Spanning Tree ...
...---------- 6/1 1 forwarding 4 32 disabled 0 6/2 1 blocking 4 32 disabled 0 Console> (enable) 7-46 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 show spantree mst instance Verify your configuration. set spantree mst instance vlan... vlan Commit the new region mapping. Configuring MST Chapter 7 Configuring Spanning Tree ...
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... set spantree mst 1 vlan 2-20 Edit Buffer modified. Console> (enable) set spantree mst config name cisco revision 1 Edit Buffer modified. Console> (enable) set spantree mst 4 vlan 41-50 Edit Buffer modified... modified. Console> (enable) set spantree mst config commit' to apply the changes. Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-47 NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:1 Instance VLANs IST 1-4094 1 - 2 - 3 - 4 - 5 - 6 - 7...
... set spantree mst 1 vlan 2-20 Edit Buffer modified. Console> (enable) set spantree mst config name cisco revision 1 Edit Buffer modified. Console> (enable) set spantree mst 4 vlan 41-50 Edit Buffer modified... modified. Console> (enable) set spantree mst config commit' to apply the changes. Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-47 NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:1 Instance VLANs IST 1-4094 1 - 2 - 3 - 4 - 5 - 6 - 7...
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...:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 10 - 11 - 7-48 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12...
...:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 10 - 11 - 7-48 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12...
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... set spantree mst config commit show spantree mst config Current (NVRAM) MST Region Configuration: Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 7-54 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 IST will always be active. • You can...10000 20 P2P, Boundary(PVST) 6/2 blocking BDRY 20000 32 P2P, Boundary(PVST) Console> (enable) Mapping and Unmapping VLANs to an MST instance. Make the new region mapping effective.
... set spantree mst config commit show spantree mst config Current (NVRAM) MST Region Configuration: Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 2-20 2 21-30 3 31-40 4 41-50 5 - 6 - 7 - 8 - 9 - 7-54 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 IST will always be active. • You can...10000 20 P2P, Boundary(PVST) 6/2 blocking BDRY 20000 32 P2P, Boundary(PVST) Console> (enable) Mapping and Unmapping VLANs to an MST instance. Make the new region mapping effective.
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...changes. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-55 Console> (enable) show spantree mst config Current (NVRAM) MST Region Configuration: Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 ... Console> (enable) Console> (enable) clear spantree mst 14 vlan 900-998 Edit Buffer modified. NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:2 Instance VLANs IST 1,51-899,1000-4094 1 2-20 2 21-30 3 31-40 ...
...changes. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 7-55 Console> (enable) show spantree mst config Current (NVRAM) MST Region Configuration: Configuration Name:cisco Revision:1 Instance VLANs IST 1,51-4094 1 ... Console> (enable) Console> (enable) clear spantree mst 14 vlan 900-998 Edit Buffer modified. NEW MST Region Configuration (Not committed yet) Configuration Name:cisco Revision:2 Instance VLANs IST 1,51-899,1000-4094 1 2-20 2 21-30 3 31-40 ...