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... 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, ...ALL FAULTS. All rights reserved. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY...
... 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, ...ALL FAULTS. All rights reserved. and certain other company. (0304R) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide Copyright © 2000-2003, Cisco Systems, Inc. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY...
Software Guide
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... Administrative Groups and EtherChannel IDs 6-6 Configuring EtherChannel Using PAgP 6-6 Creating an EtherChannel 6-7 Defining an EtherChannel Administrative Group 6-7 Setting the EtherChannel Spanning Tree Port Cost 6-8 Setting the EtherChannel Spanning Tree Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
... Administrative Groups and EtherChannel IDs 6-6 Configuring EtherChannel Using PAgP 6-6 Creating an EtherChannel 6-7 Defining an EtherChannel Administrative Group 6-7 Setting the EtherChannel Spanning Tree Port Cost 6-8 Setting the EtherChannel Spanning Tree Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration...
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... LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying Spanning Tree-Related Information for EtherChannels 6-22 7 C H A P T E R Configuring Spanning Tree 7-1 Understanding How STPs Work 7-2 Understanding How a Topology Is Created 7-2 Understanding How a Switch or Port Becomes the Root Switch or Root Port 7-3 Understanding...-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
... LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying Spanning Tree-Related Information for EtherChannels 6-22 7 C H A P T E R Configuring Spanning Tree 7-1 Understanding How STPs Work 7-2 Understanding How a Topology Is Created 7-2 Understanding How a Switch or Port Becomes the Root Switch or Root Port 7-3 Understanding...-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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...on a Trunk 11-6 Disabling a Trunk Port 11-7 Disabling VLAN 1 on a Trunk Link 11-8 Example VLAN Trunk Configurations 11-9 802.1Q Trunk over a Gigabit EtherChannel Link Example 11-9 Load-Sharing VLAN Traffic over Parallel Trunks Example 11-13 802.1Q Nonegotiate Trunk Configuration Example 11-19 Configuring Dynamic VLAN Membership... VMPS Clients 12-8 Monitoring VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 x 78-15486-01
...on a Trunk 11-6 Disabling a Trunk Port 11-7 Disabling VLAN 1 on a Trunk Link 11-8 Example VLAN Trunk Configurations 11-9 802.1Q Trunk over a Gigabit EtherChannel Link Example 11-9 Load-Sharing VLAN Traffic over Parallel Trunks Example 11-13 802.1Q Nonegotiate Trunk Configuration Example 11-19 Configuring Dynamic VLAN Membership... VMPS Clients 12-8 Monitoring VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 x 78-15486-01
Software Guide
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...Ethernet and Fast Ethernet Switching Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Spanning Tree Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles. Configuring the Switch IP Address and ... network administrators who are responsible for configuring and maintaining Catalyst enterprise LAN switches. Audience This publication is organized, and its document conventions. Configuring Fast EtherChannel Describes how to configure the Spanning Tree Protocol and ...
...Ethernet and Fast Ethernet Switching Describes how to perform a baseline configuration of the Catalyst enterprise LAN switches. Configuring Spanning Tree Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles. Configuring the Switch IP Address and ... network administrators who are responsible for configuring and maintaining Catalyst enterprise LAN switches. Audience This publication is organized, and its document conventions. Configuring Fast EtherChannel Describes how to configure the Spanning Tree Protocol and ...
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...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-3 Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports Table 4-1 Ethernet and Fast Ethernet Default Configurations Feature Port enable state Port name Port priority Duplex mode Native VLAN Spanning tree port cost Fast EtherChannel...Fast Ethernet Ports These sections describe how to configure Ethernet and Fast Ethernet switching ports on the Catalyst enterprise LAN switches: • Setting Ethernet and Fast Ethernet Port Names, page 4-3 ...
...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 4-3 Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports Table 4-1 Ethernet and Fast Ethernet Default Configurations Feature Port enable state Port name Port priority Duplex mode Native VLAN Spanning tree port cost Fast EtherChannel...Fast Ethernet Ports These sections describe how to configure Ethernet and Fast Ethernet switching ports on the Catalyst enterprise LAN switches: • Setting Ethernet and Fast Ethernet Port Names, page 4-3 ...
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...(possible blocking). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 ...5-3 To determine which features a 1000BASE-T Gigabit Ethernet port supports, enter the show port capabilities command. Gigabit Ethernet port negotiation is full. Chapter 5 Configuring Gigabit Ethernet Switching...Oversubscribed Gigabit Ethernet Works The Catalyst 4500 series Gigabit Ethernet modules ...is used to the local Gigabit EtherChannel module port. 2. On a ...
...(possible blocking). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 ...5-3 To determine which features a 1000BASE-T Gigabit Ethernet port supports, enter the show port capabilities command. Gigabit Ethernet port negotiation is full. Chapter 5 Configuring Gigabit Ethernet Switching...Oversubscribed Gigabit Ethernet Works The Catalyst 4500 series Gigabit Ethernet modules ...is used to the local Gigabit EtherChannel module port. 2. On a ...
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... are in each oversubscribed port group and can use the full 1-Gbps bandwidth. • Workstations 1 through a two-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Each server has one oversubscribed port group and two are shown: • Server A, equipped with...
... are in each oversubscribed port group and can use the full 1-Gbps bandwidth. • Workstations 1 through a two-port Gigabit EtherChannel trunk link providing 2-Gbps bandwidth. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-5 Each server has one oversubscribed port group and two are shown: • Server A, equipped with...
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... (Rx) and desired for transmit (Tx) Port negotiation Enabled Spanning Tree Protocol Enabled for VLAN 1 Native VLAN VLAN 1 Spanning tree port cost 4 Gigabit EtherChannel Disabled on all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01 Default Gigabit Ethernet Configuration Chapter 5 Configuring Gigabit Ethernet...
... (Rx) and desired for transmit (Tx) Port negotiation Enabled Spanning Tree Protocol Enabled for VLAN 1 Native VLAN VLAN 1 Spanning tree port cost 4 Gigabit EtherChannel Disabled on all Gigabit Ethernet ports (auto mode) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 5-6 78-15486-01 Default Gigabit Ethernet Configuration Chapter 5 Configuring Gigabit Ethernet...
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... the name for each port. Note For information on the Catalyst enterprise LAN switches. When two ports simultaneously request access to the switching bus, the switch uses the priority level to configure Gigabit Ethernet switching ports on configuring Gigabit EtherChannel, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." To assign a name to a port, perform this task in which...
... the name for each port. Note For information on the Catalyst enterprise LAN switches. When two ports simultaneously request access to the switching bus, the switch uses the priority level to configure Gigabit Ethernet switching ports on configuring Gigabit EtherChannel, see Chapter 6, "Configuring Fast EtherChannel and Gigabit EtherChannel." To assign a name to a port, perform this task in which...
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... Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. The configuration procedures in this chapter apply to Fast Ethernet and Gigabit Ethernet switch ports on the Catalyst enterprise LAN switches. Note For complete syntax and usage information for EtherChannel, page 6-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-1 CH A P T E R 6 Configuring Fast EtherChannel and Gigabit EtherChannel...
... Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. The configuration procedures in this chapter apply to Fast Ethernet and Gigabit Ethernet switch ports on the Catalyst enterprise LAN switches. Note For complete syntax and usage information for EtherChannel, page 6-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-1 CH A P T E R 6 Configuring Fast EtherChannel and Gigabit EtherChannel...
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... can enter the show port capabilities command to determine whether your hardware, you can form an EtherChannel with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 In addition, on the low-order bits of ...based on the Catalyst 4500 series switches, you can configure any two to confirm which is hardware dependent. A trap is not configurable. Due to the 802.3ad specification. PAgP is 126 for EtherChannel EtherChannel support is defined in IEEE 802.3ad, allows Cisco switches to manage ...
... can enter the show port capabilities command to determine whether your hardware, you can form an EtherChannel with adjoining switches. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 In addition, on the low-order bits of ...based on the Catalyst 4500 series switches, you can configure any two to confirm which is hardware dependent. A trap is not configurable. Due to the 802.3ad specification. PAgP is 126 for EtherChannel EtherChannel support is defined in IEEE 802.3ad, allows Cisco switches to manage ...
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... to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 you have to be configured manually, with LACP, use the same protocol; Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration Guidelines and Restrictions EtherChannel Configuration Guidelines and Restrictions If improperly configured, some EtherChannel ports are disabled automatically to avoid network...
... to full duplex. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-3 you have to be configured manually, with LACP, use the same protocol; Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration Guidelines and Restrictions EtherChannel Configuration Guidelines and Restrictions If improperly configured, some EtherChannel ports are disabled automatically to avoid network...
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...form with ports that have unexpected results. • An EtherChannel supports the same allowed range of the ports is preserved even if it to spanning tree as an individual port. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-4 78-15486-01 Doing... of VLANs is enabled. If the allowed range of service (QoS) configurations. • An EtherChannel will not form if protocol filtering is set differently on the ports. • Cisco Discovery Protocol (CDP) runs on the physical port even after the port is added to a channel...
...form with ports that have unexpected results. • An EtherChannel supports the same allowed range of the ports is preserved even if it to spanning tree as an individual port. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-4 78-15486-01 Doing... of VLANs is enabled. If the allowed range of service (QoS) configurations. • An EtherChannel will not form if protocol filtering is set differently on the ports. • Cisco Discovery Protocol (CDP) runs on the physical port even after the port is added to a channel...
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... form a channel, based on criteria such as a single bridge port. Use the non-silent keyword when you are configuring EtherChannel using LACP, see the "Understanding the LACP" section on one port in the channel only, not out every port in ... in on . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-5 In any other port of Fast EtherChannel and Gigabit EtherChannel links by sending PAgP packets. Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Understanding the PAgP Understanding the PAgP Use...
... form a channel, based on criteria such as a single bridge port. Use the non-silent keyword when you are configuring EtherChannel using LACP, see the "Understanding the LACP" section on one port in the channel only, not out every port in ... in on . 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-5 In any other port of Fast EtherChannel and Gigabit EtherChannel links by sending PAgP packets. Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Understanding the PAgP Understanding the PAgP Use...
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... saved in NVRAM and remain the same after the switch is reset or power cycled. EtherChannel IDs are stored in NVRAM. You can change if the EtherChannel is torn down and renegotiated, or if the switch is reset or power cycled. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 You can...
... saved in NVRAM and remain the same after the switch is reset or power cycled. EtherChannel IDs are stored in NVRAM. You can change if the EtherChannel is torn down and renegotiated, or if the switch is reset or power cycled. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 You can...
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...3 Task If you are unsure which ports you create an EtherChannel port bundle, an administrative group is not already assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Command show port capabilities ...mode set port channel 3/5-6 on . Create an EtherChannel with the auto and desirable modes. The admin_group can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you create an EtherChannel, an administrative group number is assigned automatically if...
...3 Task If you are unsure which ports you create an EtherChannel port bundle, an administrative group is not already assigned to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-7 Command show port capabilities ...mode set port channel 3/5-6 on . Create an EtherChannel with the auto and desirable modes. The admin_group can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you create an EtherChannel, an administrative group number is assigned automatically if...
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... 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-8 78-15486-01 This example shows how to set the EtherChannel port path cost for an EtherChannel set channel cost {channel_id | all} cost using the EtherChannel ID obtained in Step 1. Console> (enable) show channel group 50...
... 1/1 20 1/2 066510644(cat26-lnf(NET25)) 2/1 WS-C6009 Console> (enable) Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-8 78-15486-01 This example shows how to set the EtherChannel port path cost for an EtherChannel set channel cost {channel_id | all} cost using the EtherChannel ID obtained in Step 1. Console> (enable) show channel group 50...
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...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9 Setting the spanning tree port VLAN cost provides load balancing of VLAN traffic across multiple channels configured with trunking because some of the VLANs in the channel have port cost. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel... if channel is set to 12. Verify the configuration. Console> (enable) Setting the EtherChannel Spanning Tree Port VLAN Cost The spanning tree port VLAN cost provides an alternate cost for...
...Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-9 Setting the spanning tree port VLAN cost provides load balancing of VLAN traffic across multiple channels configured with trunking because some of the VLANs in the channel have port cost. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel... if channel is set to 12. Verify the configuration. Console> (enable) Setting the EtherChannel Spanning Tree Port VLAN Cost The spanning tree port VLAN cost provides an alternate cost for...
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... EtherChannel configuration information by EtherChannel ID. Display EtherChannel configuration information by port. Display EtherChannel configuration information by EtherChannel administrative group. Configuring EtherChannel Using PAgP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel ... not-trunking negotiate 1-1005 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 Command show port channel [mod_num[/port_num]] info [...
... EtherChannel configuration information by EtherChannel ID. Display EtherChannel configuration information by port. Display EtherChannel configuration information by EtherChannel administrative group. Configuring EtherChannel Using PAgP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel ... not-trunking negotiate 1-1005 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 Command show port channel [mod_num[/port_num]] info [...