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...Specifying the System Priority 6-19 Specifying the Port Priority 6-19 Specifying an Administrative Key Value 6-19 Changing the Channel Mode 6-20 Specifying the Channel Path Cost 6-21 Specifying the Channel VLAN Cost 6-21 Clearing LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying ...Rapid Spanning Tree Protocol 7-16 MST-to-SST Interoperability 7-17 Common Spanning Tree 7-18 MST Instances 7-18 MST Configuration 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vi 78-15486-01
...Specifying the System Priority 6-19 Specifying the Port Priority 6-19 Specifying an Administrative Key Value 6-19 Changing the Channel Mode 6-20 Specifying the Channel Path Cost 6-21 Specifying the Channel VLAN Cost 6-21 Clearing LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying ...Rapid Spanning Tree Protocol 7-16 MST-to-SST Interoperability 7-17 Common Spanning Tree 7-18 MST Instances 7-18 MST Configuration 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vi 78-15486-01
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...and Using Configuration Files Guidelines 35-1 Creating a Configuration File 35-2 Configuring the Switch Using a File in Flash Memory 35-2 Copying Configuration Files Using TFTP 35...Switch Acceleration 36-1 Understanding How Switch Acceleration Works 36-1 Configuring Switch Acceleration on the Switch 36-2 Enabling Switch Acceleration 36-3 Displaying Switch Acceleration Information 36-3 Backplane Channel Module 36-3 Configuring System Message Logging 37-1 Understanding How System Message Logging Works 37-1 System Log Message Format 37-3 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...and Using Configuration Files Guidelines 35-1 Creating a Configuration File 35-2 Configuring the Switch Using a File in Flash Memory 35-2 Copying Configuration Files Using TFTP 35...Switch Acceleration 36-1 Understanding How Switch Acceleration Works 36-1 Configuring Switch Acceleration on the Switch 36-2 Enabling Switch Acceleration 36-3 Displaying Switch Acceleration Information 36-3 Backplane Channel Module 36-3 Configuring System Message Logging 37-1 Understanding How System Message Logging Works 37-1 System Log Message Format 37-3 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxv Working With the Flash File System Describes how to work with the Flash file system available on some switch platforms. Working with System Software Describes how to create, download, and upload switch configuration files. Configuring Switch Acceleration Describes the Backplane Channel module and the switch acceleration...
...-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxv Working With the Flash File System Describes how to work with the Flash file system available on some switch platforms. Working with System Software Describes how to create, download, and upload switch configuration files. Configuring Switch Acceleration Describes the Backplane Channel module and the switch acceleration...
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...ms 3 gateway_a.company.com (173.16.1.201) 6 ms 3 ms 3 ms 4 somehost.company.com (10.1.2.3) 3 ms * 2 ms Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-8 78-15486-01 Use the ping and traceroute commands to test connectivity out ...Chapter 4 Configuring Ethernet and Fast Ethernet Switching This example shows how to display the errdisable timeout configuration: Console> (enable) show errdisable-timeout ErrDisable Reason Timeout Status bpdu-guard Enable channel-misconfig Disable duplex-mismatch Enable udld ...
...ms 3 gateway_a.company.com (173.16.1.201) 6 ms 3 ms 3 ms 4 somehost.company.com (10.1.2.3) 3 ms * 2 ms Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-8 78-15486-01 Use the ping and traceroute commands to test connectivity out ...Chapter 4 Configuring Ethernet and Fast Ethernet Switching This example shows how to display the errdisable timeout configuration: Console> (enable) show errdisable-timeout ErrDisable Reason Timeout Status bpdu-guard Enable channel-misconfig Disable duplex-mismatch Enable udld ...
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...78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 and trunk-capable network interface cards (NICs), connects to a port in each connected port (1 Gbps total). • Servers B and C, also with channel- Oversubscribed Gigabit... Ethernet Example Figure 5-1 shows an example of 250 Mbps for each connected port (500 Mbps total) in one oversubscribed port group. Table 5-8 Oversubscribed Port Groupings for Module WS-X4448-GB-RJ45 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, ...
...78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 and trunk-capable network interface cards (NICs), connects to a port in each connected port (1 Gbps total). • Servers B and C, also with channel- Oversubscribed Gigabit... Ethernet Example Figure 5-1 shows an example of 250 Mbps for each connected port (500 Mbps total) in one oversubscribed port group. Table 5-8 Oversubscribed Port Groupings for Module WS-X4448-GB-RJ45 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, ...
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... of each frame. In addition, on PAgP and LACP EtherChannel ports. The switch distributes frames across the links in IEEE 802.3ad, allows Cisco switches to the 802.3ad specification. For more information, see the "Understanding the LACP... form a channel through dynamic negotiation with similar characteristics to the source and destination MAC addresses. PAgP and LACP Port Aggregation Control Protocol (PAgP) and Link Aggregation Control Protocol (LACP) allow ports with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration ...
... of each frame. In addition, on PAgP and LACP EtherChannel ports. The switch distributes frames across the links in IEEE 802.3ad, allows Cisco switches to the 802.3ad specification. For more information, see the "Understanding the LACP... form a channel through dynamic negotiation with similar characteristics to the source and destination MAC addresses. PAgP and LACP Port Aggregation Control Protocol (PAgP) and Link Aggregation Control Protocol (LACP) allow ports with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration ...
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...EtherChannel. • PAgP and LACP manage channels differently. Guidelines for Configuring a Port This section lists the guidelines and restrictions for configuring a port for LACP mode). • Enable all ports in an EtherChannel. Note Switches can be contiguous or on the same ... is set by itself, make ports incompatible for that port. Instead of a channel must use the show commands continue to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 With software release 7.3(1) and later releases, LACP...
...EtherChannel. • PAgP and LACP manage channels differently. Guidelines for Configuring a Port This section lists the guidelines and restrictions for configuring a port for LACP mode). • Enable all ports in an EtherChannel. Note Switches can be contiguous or on the same ... is set by itself, make ports incompatible for that port. Instead of a channel must use the show commands continue to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 With software release 7.3(1) and later releases, LACP...
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...• An EtherChannel will not form if protocol filtering is set differently on the ports. • Cisco Discovery Protocol (CDP) runs on its channeling configuration and state, and the links are pulled down temporarily to cause partner ports to off. All...and LACP to reset. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-4 78-15486-01 Configuring ports in an EtherChannel in different trunk modes can adversely affect switch performance. • Ports with different dynamic configurations cannot form a channel. • If ...
...• An EtherChannel will not form if protocol filtering is set differently on the ports. • Cisco Discovery Protocol (CDP) runs on its channeling configuration and state, and the links are pulled down temporarily to cause partner ports to off. All...and LACP to reset. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-4 78-15486-01 Configuring ports in an EtherChannel in different trunk modes can adversely affect switch performance. • Ports with different dynamic configurations cannot form a channel. • If ...
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... configured. PAgP packets are not exchanged. If the peer port is in on . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-5 The port is not channeling regardless of the channel. Places a port into a passive negotiating state, in which the port responds to PAgP packets it groups the ports into an...
... configured. PAgP packets are not exchanged. If the peer port is in on . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-5 The port is not channeling regardless of the channel. Places a port into a passive negotiating state, in which the port responds to PAgP packets it groups the ports into an...
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...channel group command to the administrative group number, each EtherChannel is automatically assigned a unique EtherChannel ID. The ID can define an EtherChannel administrative group without specifying an administrative group number creates a new automatically numbered administrative group consisting of eight ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying EtherChannel Traffic Statistics, page 6-11 • Displaying EtherChannel PAgP ...
...channel group command to the administrative group number, each EtherChannel is automatically assigned a unique EtherChannel ID. The ID can define an EtherChannel administrative group without specifying an administrative group number creates a new automatically numbered administrative group consisting of eight ports. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying EtherChannel Traffic Statistics, page 6-11 • Displaying EtherChannel PAgP ...
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...Channel Admin Ch Mode Group Id 3/5 connected on 57 835 3/6 connected on connected ports causes the specified ports to be any value between 1 and 1024, inclusive. Caution Modifying the EtherChannel administrative group on 57 835 Port Device-ID Port-ID Platform 3/5 069003103(5500) 3/5 WS-C4000 3/6 069003103(5500) 3/6 WS... port channel 3/5-6 on . Command show port channel [port_list] This example shows how to the specified ports. When you are assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...
...Channel Admin Ch Mode Group Id 3/5 connected on 57 835 3/6 connected on connected ports causes the specified ports to be any value between 1 and 1024, inclusive. Caution Modifying the EtherChannel administrative group on 57 835 Port Device-ID Port-ID Platform 3/5 069003103(5500) 3/5 WS-C4000 3/6 069003103(5500) 3/6 WS... port channel 3/5-6 on . Command show port channel [port_list] This example shows how to the specified ports. When you are assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software ...
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... configuration: Console> (enable) set channel cost {channel_id | all} cost using the EtherChannel ID obtained in Step 1. Console> (enable) show channel group 50 Admin Port Status Channel Channel group Mode id 50 3/5 connected ...channel ID 768: Console> (enable) show channel group 20 Admin Port Status Channel Channel group Mode id 20 1/1 notconnect on 768 20 1/2 connected on 768 Admin Port Device-ID Port-ID Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... configuration: Console> (enable) set channel cost {channel_id | all} cost using the EtherChannel ID obtained in Step 1. Console> (enable) show channel group 50 Admin Port Status Channel Channel group Mode id 50 3/5 connected ...channel ID 768: Console> (enable) show channel group 20 Admin Port Status Channel Channel group Mode id 20 1/1 notconnect on 768 20 1/2 connected on 768 Admin Port Device-ID Port-ID Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable) set channel vlancost 768 12 Channel 768 vlancost set to 12. Verify the configuration. Channel 768 cost is broken. Setting the spanning tree port VLAN cost... provides load balancing of VLAN traffic across multiple channels configured with trunking because some of the EtherChannel for show port channel [mod_num[/port_num]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9 cost This example shows...
...Platform group 20 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Console> (enable) set channel vlancost 768 12 Channel 768 vlancost set to 12. Verify the configuration. Channel 768 cost is broken. Setting the spanning tree port VLAN cost... provides load balancing of VLAN traffic across multiple channels configured with trunking because some of the EtherChannel for show port channel [mod_num[/port_num]] 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9 cost This example shows...
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... 3/6 not-trunking negotiate 1-1005 Port Portvlancost-vlans 3/5 3/6 6-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Display EtherChannel configuration information by EtherChannel administrative group. Configuring EtherChannel Using PAgP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel This example shows how to return a channel to its default configuration and how to verify...
... 3/6 not-trunking negotiate 1-1005 Port Portvlancost-vlans 3/5 3/6 6-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Display EtherChannel configuration information by EtherChannel administrative group. Configuring EtherChannel Using PAgP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel This example shows how to return a channel to its default configuration and how to verify...
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... 835: Console> show channel 835 mac Channel Rcv-Unicast Rcv-Multicast Rcv-Broadcast 835 0 119200 0 Channel Xmit-Unicast Xmit-Multicast Xmit-Broadcast 835 0 184171 0 Channel Rcv-Octet Xmit-Octet 835 11283708 14942104 Channel Dely-Exced MTU-Exced In-Discard Lrn-Discrd In-Lost Out-Lost 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
... 835: Console> show channel 835 mac Channel Rcv-Unicast Rcv-Multicast Rcv-Broadcast 835 0 119200 0 Channel Xmit-Unicast Xmit-Multicast Xmit-Broadcast 835 0 184171 0 Channel Rcv-Octet Xmit-Octet 835 11283708 14942104 Channel Dely-Exced MTU-Exced In-Discard Lrn-Discrd In-Lost Out-Lost 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
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... by port. Display EtherChannel PAgP statistics by EtherChannel ID. Command show port channel [mod_num[/port_num]] statistics show channel group [admin_group] statistics show channel group 58 statistics Port Admin PAgP Pkts PAgP Pkts PAgP Pkts PAgP Pkts ...group: Console> show channel [admin_group] statistics This example shows how to configure a four-port Fast EtherChannel link between two switches. Figure 6-1 shows two switches connected through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
... by port. Display EtherChannel PAgP statistics by EtherChannel ID. Command show port channel [mod_num[/port_num]] statistics show channel group [admin_group] statistics show channel group 58 statistics Port Admin PAgP Pkts PAgP Pkts PAgP Pkts PAgP Pkts ...group: Console> show channel [admin_group] statistics This example shows how to configure a four-port Fast EtherChannel link between two switches. Figure 6-1 shows two switches connected through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
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... 1/1-4 2/1-2 3/1-3 Switch_A> (enable) set port speed 1/1-4 100 Ports 1/1-4 transmission speed set to negotiate a Fast EtherChannel bundle with the neighboring switch. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) Switch_B> (enable) show port channel command. Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 1/1 left bridge port 1/1 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-13 VLAN...
... 1/1-4 2/1-2 3/1-3 Switch_A> (enable) set port speed 1/1-4 100 Ports 1/1-4 transmission speed set to negotiate a Fast EtherChannel bundle with the neighboring switch. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) Switch_B> (enable) show port channel command. Switch_A> (enable) %PAGP-5-PORTFROMSTP:Port 1/1 left bridge port 1/1 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-13 VLAN...
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... 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 1/1 connected desirable channel WS-C4003 JAB023806(Sw 3/1 1/2 connected desirable channel WS-C4003 JAB023806(Sw 3/2 1/3 connected desirable channel WS-C4003 JAB023806(Sw 3/3 1/4 connected desirable channel WS-C4003 JAB023806(Sw 3/4 Switch_A> (enable...
... 1000BASE-SX Gigabit Ethernet ports. 6-14 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Switch_A> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 1/1 connected desirable channel WS-C4003 JAB023806(Sw 3/1 1/2 connected desirable channel WS-C4003 JAB023806(Sw 3/2 1/3 connected desirable channel WS-C4003 JAB023806(Sw 3/3 1/4 connected desirable channel WS-C4003 JAB023806(Sw 3/4 Switch_A> (enable...
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... 3/1 joined bridge port 3/1-2 %PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 Switch_A> (enable) set vlan 100 3/1-2 VLAN 100 modified. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) Switch_B> (enable) show port channel command. Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/1 left bridge port 3/1 %PAGP-5-PORTFROMSTP:Port...
... 3/1 joined bridge port 3/1-2 %PAGP-5-PORTTOSTP:Port 3/2 joined bridge port 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 Switch_A> (enable) set vlan 100 3/1-2 VLAN 100 modified. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) Switch_B> (enable) show port channel command. Switch_B> (enable) %PAGP-5-PORTFROMSTP:Port 3/1 left bridge port 3/1 %PAGP-5-PORTFROMSTP:Port...
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...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-C4003 JAB023806LN( 3/2 Switch_A> (enable) Switch_B> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected on channel WS-C4003 JAB023806JR( 2/1 3/2 connected on channel WS... Mode that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486...
...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-C4003 JAB023806LN( 3/2 Switch_A> (enable) Switch_B> (enable) show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected on channel WS-C4003 JAB023806JR( 2/1 3/2 connected on channel WS... Mode that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486...