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... P T E R 6 C H A P T E R 78-15486-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation... 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 Guide-Release 8.1 v
... P T E R 6 C H A P T E R 78-15486-01 Configuring Gigabit Ethernet Switching 5-1 Understanding How Gigabit Ethernet Works 5-1 Understanding How Gigabit Ethernet Flow Control Works 5-1 Understanding How Port Negotiation... 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 Guide-Release 8.1 v
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... and Gigabit EtherChannel Gigabit EtherChannel port bundles. Filter, UplinkFast, BackboneFast, and Loop Guard 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxiii Configuring the Switch IP Address and Default Gateway Describes ...). Audience This publication is for configuring and maintaining Catalyst enterprise LAN switches. Configuring Gigabit Ethernet Switching Describes how to configure Ethernet and Fast Ethernet switching on the switch. Preface This preface describes who are responsible for ...
... and Gigabit EtherChannel Gigabit EtherChannel port bundles. Filter, UplinkFast, BackboneFast, and Loop Guard 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xxiii Configuring the Switch IP Address and Default Gateway Describes ...). Audience This publication is for configuring and maintaining Catalyst enterprise LAN switches. Configuring Gigabit Ethernet Switching Describes how to configure Ethernet and Fast Ethernet switching on the switch. Preface This preface describes who are responsible for ...
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...8226; Servers B and C, also with quick failover for links to the switch 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 group of 250 Mbps for end-...X4448-GB-RJ45. You can use the full 1-Gbps bandwidth. • Workstations 1 through 4 are high-end workstations. Bundling multiple oversubscribed ports in one oversubscribed port group. Oversubscribed Gigabit Ethernet Example Figure 5-1 shows an example of traffic over channeled ...
...8226; Servers B and C, also with quick failover for links to the switch 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 group of 250 Mbps for end-...X4448-GB-RJ45. You can use the full 1-Gbps bandwidth. • Workstations 1 through 4 are high-end workstations. Bundling multiple oversubscribed ports in one oversubscribed port group. Oversubscribed Gigabit Ethernet Example Figure 5-1 shows an example of traffic over channeled ...
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Default Gigabit Ethernet Configuration Chapter 5 Configuring Gigabit Ethernet Switching Figure 5-1 Example of a Server Switching Network Topology Network backbone Backbone switch CAUTION THIS ASSEMBLY CONTAINS ELECTROSTATICSENSITIVE DEVICES 0% 100% 18069 Gigabit EtherChannel bundles Server A Server B Workstation 1 Workstation 3 Server D Workstation 4 Server C Workstation 2 ...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 Switching Figure 5-1 Example of a Server Switching Network Topology Network backbone Backbone switch CAUTION THIS ASSEMBLY CONTAINS ELECTROSTATICSENSITIVE DEVICES 0% 100% 18069 Gigabit EtherChannel bundles Server A Server B Workstation 1 Workstation 3 Server D Workstation 4 Server C Workstation 2 ...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
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... to supervisor engine Fast Ethernet and Gigabit Ethernet uplink ports. Note For complete information on installing Catalyst 4500 series Fast Ethernet and Gigabit Ethernet modules, refer to configure Fast EtherChannel and Gigabit EtherChannel port bundles on switching modules and fixed-configuration switches, as well as to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference.
... to supervisor engine Fast Ethernet and Gigabit Ethernet uplink ports. Note For complete information on installing Catalyst 4500 series Fast Ethernet and Gigabit Ethernet modules, refer to configure Fast EtherChannel and Gigabit EtherChannel port bundles on switching modules and fixed-configuration switches, as well as to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference.
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... with similar characteristics to form a channel through dynamic negotiation with devices that can consist of each frame. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 All ports in the channel as an EtherChannel. After ... channel, you can bundle into a single logical transmission path between a switch and a router, a host, or another switch. You can enter the show port capabilities command to the source and destination MAC addresses. Ports in IEEE 802.3ad, allows Cisco switches to eight ports. ...
... with similar characteristics to form a channel through dynamic negotiation with devices that can consist of each frame. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 All ports in the channel as an EtherChannel. After ... channel, you can bundle into a single logical transmission path between a switch and a router, a host, or another switch. You can enter the show port capabilities command to the source and destination MAC addresses. Ports in IEEE 802.3ad, allows Cisco switches to eight ports. ...
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... Spanning Tree Port Cost, page 6-8 • Setting the EtherChannel Spanning Tree Port VLAN Cost, page 6-9 • Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying EtherChannel Traffic Statistics, page 6-11 • Displaying EtherChannel...packets. • A port in off mode will initiate negotiation. • A port in on page 6-3. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Use the show channel group command to which the EtherChannel ...
... Spanning Tree Port Cost, page 6-8 • Setting the EtherChannel Spanning Tree Port VLAN Cost, page 6-9 • Removing an EtherChannel Bundle, page 6-9 • Displaying EtherChannel Configuration Information, page 6-10 • Displaying EtherChannel Traffic Statistics, page 6-11 • Displaying EtherChannel...packets. • A port in off mode will initiate negotiation. • A port in on page 6-3. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01 Use the show channel group command to which the EtherChannel ...
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... port bundle, an administrative group is limited by specifying the ports in privileged mode: Step 1 Step 2 Step 3 Task If you are unsure which ports you can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are allowed to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... port bundle, an administrative group is limited by specifying the ports in privileged mode: Step 1 Step 2 Step 3 Task If you are unsure which ports you can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are allowed to forwarding mode). 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...tree port VLAN cost for channel ID 768: Console> (enable) 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 Channel 768 cost is broken. Setting the spanning tree port VLAN cost provides load ... 12 Channel 768 vlancost set to set the port VLAN cost. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to set the EtherChannel VLAN cost for an EtherChannel set channel vlancost {channel_id | all} using the EtherChannel...
...tree port VLAN cost for channel ID 768: Console> (enable) 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 Channel 768 cost is broken. Setting the spanning tree port VLAN cost provides load ... 12 Channel 768 vlancost set to set the port VLAN cost. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to set the EtherChannel VLAN cost for an EtherChannel set channel vlancost {channel_id | all} using the EtherChannel...
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... through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Display EtherChannel PAgP statistics by EtherChannel administrative group: Console> show channel group..., page 6-12 • Configuration Example of Two-Port Gigabit EtherChannel, page 6-14 Note For examples of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11-9. Command show port channel [mod_num[/port_num]] statistics show channel group [admin_group] ...
... through four 100BASE-TX Fast Ethernet ports. 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Display EtherChannel PAgP statistics by EtherChannel administrative group: Console> show channel group..., page 6-12 • Configuration Example of Two-Port Gigabit EtherChannel, page 6-14 Note For examples of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11-9. Command show port channel [mod_num[/port_num]] statistics show channel group [admin_group] ...
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...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 Mod/Ports 50 3/1-4 Switch_B> (enable) set port speed 3/1-4 100... Ports 3/1-4 transmission speed set to full-duplex. The system logging messages provide information about the formation of the EtherChannel bundle. ...
...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 Mod/Ports 50 3/1-4 Switch_B> (enable) set port speed 3/1-4 100... Ports 3/1-4 transmission speed set to full-duplex. The system logging messages provide information about the formation of the EtherChannel bundle. ...
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... through four 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 ...:Port 3/2 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/3 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/4 joined bridge port 3/1-4 After the EtherChannel bundle is negotiated, enter the show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected auto channel WS-C4012 009979082(Sw 1/1...
... through four 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 ...:Port 3/2 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/3 joined bridge port 3/1-4 %PAGP-5-PORTTOSTP:Port 3/4 joined bridge port 3/1-4 After the EtherChannel bundle is negotiated, enter the show port channel Port Status Channel Channel Neighbor Neighbor mode status device port 3/1 connected auto channel WS-C4012 009979082(Sw 1/1...
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... 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 The system logging messages provide information about the formation of the EtherChannel bundle. The switches will not negotiate an EtherChannel port bundle automatically in on . Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel...
... 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 The system logging messages provide information about the formation of the EtherChannel bundle. The switches will not negotiate an EtherChannel port bundle automatically in on . Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel...
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...the ports on one end of LACP packets. Table 6-2 describes the EtherChannel modes that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If you want LACP to initiation and never initiate the sending of the link ... the port to channel without LACP. Understanding the LACP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 After the EtherChannel bundle is connected to another port group in passive mode passively respond to handle channeling, use LACP.
...the ports on one end of LACP packets. Table 6-2 describes the EtherChannel modes that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 If you want LACP to initiation and never initiate the sending of the link ... the port to channel without LACP. Understanding the LACP Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel Step 4 After the EtherChannel bundle is connected to another port group in passive mode passively respond to handle channeling, use LACP.
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These changes 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 They must wait for each type of the port by 200,000,000. Changes to the default port cost or ... port when you use the long method to calculate port cost. Because of the limitations that are added or removed from an aggregate link (port bundle), the bandwidth of the spanning tree topology. Chapter 7 Configuring Spanning Tree Understanding How STPs Work Table 7-1 Default Port Cost Values Using the Short ...
These changes 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 They must wait for each type of the port by 200,000,000. Changes to the default port cost or ... port when you use the long method to calculate port cost. Because of the limitations that are added or removed from an aggregate link (port bundle), the bandwidth of the spanning tree topology. Chapter 7 Configuring Spanning Tree Understanding How STPs Work Table 7-1 Default Port Cost Values Using the Short ...
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...the default port cost mode, perform this task in PVST+ is short. Ports with all switches in the network must set a cost value from 1- 65535. 7-26 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 There are two default port cost modes available-short... a port speed of 10 Gb or over and the network is using the formula, AVERAGE_COST/NUM_PORT. EtherChannel computes the cost of a bundle using PVST+ spanning tree mode, all the ports to configure the default port cost mode: Console> (enable) set spantree defaultcostmode long ...
...the default port cost mode, perform this task in PVST+ is short. Ports with all switches in the network must set a cost value from 1- 65535. 7-26 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 There are two default port cost modes available-short... a port speed of 10 Gb or over and the network is using the formula, AVERAGE_COST/NUM_PORT. EtherChannel computes the cost of a bundle using PVST+ spanning tree mode, all the ports to configure the default port cost mode: Console> (enable) set spantree defaultcostmode long ...
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...10, "Configuring VLANs." For more switch ports and another networking device such as a router or a switch. 11 C H A P ...Catalyst enterprise LAN switches. This chapter consists of multiple VLANs over a single link and allow you to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches...Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Trunks carry... on the Catalyst enterprise LAN switches. The Catalyst 4500 series, 2948G, and 2980G switches support IEEE ...
...10, "Configuring VLANs." For more switch ports and another networking device such as a router or a switch. 11 C H A P ...Catalyst enterprise LAN switches. This chapter consists of multiple VLANs over a single link and allow you to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches...Fast EtherChannel and Gigabit EtherChannel." 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-1 Trunks carry... on the Catalyst enterprise LAN switches. The Catalyst 4500 series, 2948G, and 2980G switches support IEEE ...
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... this example, all ports on both Switch A and Switch B are configured as members of configuring trunk links between switches and routers, refer to the Layer 3 Switching Software Configuration Guide-Catalyst 5000 Family, 4000 Family, 2926G Series, 2926 Series, 2948G, and 2980G Switches publication. 802.1Q Trunk over a ...Make sure that all ports are assigned to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as the 802.1Q native VLAN for the trunk. To configure the switches to the same VLAN. Chapter 11 Configuring VLAN Trunks on Fast Ethernet and...
... this example, all ports on both Switch A and Switch B are configured as members of configuring trunk links between switches and routers, refer to the Layer 3 Switching Software Configuration Guide-Catalyst 5000 Family, 4000 Family, 2926G Series, 2926 Series, 2948G, and 2980G Switches publication. 802.1Q Trunk over a ...Make sure that all ports are assigned to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as the 802.1Q native VLAN for the trunk. To configure the switches to the same VLAN. Chapter 11 Configuring VLAN Trunks on Fast Ethernet and...
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...ports on trunk 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 Port Vlans allowed and active in the bundle. Switch_A> (enable) set trunk 2/3 desirable dot1q Port(s) 2/3-6 trunk mode set to dot1q. Switch_A> (enable) %DTP-5-TRUNKPORTON:Port 2/3 has ... encapsulation and are in the EtherChannel bundle to all of the 802.1Q trunk. The system logging messages provide information about the formation of the ports in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486...
...ports on trunk 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 1-1005, 1025-4094 Port Vlans allowed and active in the bundle. Switch_A> (enable) set trunk 2/3 desirable dot1q Port(s) 2/3-6 trunk mode set to dot1q. Switch_A> (enable) %DTP-5-TRUNKPORTON:Port 2/3 has ... encapsulation and are in the EtherChannel bundle to all of the 802.1Q trunk. The system logging messages provide information about the formation of the ports in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486...
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... Switch_B> (enable) show trunk No ports trunking. This example assumes that the neighboring ports on Switch A to negotiate a Gigabit EtherChannel bundle with the neighboring switch. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) show trunk No ports...3/6 1-1005, 1025-4094 Switch_B> (enable) Confirm the channeling and trunking status of the EtherChannel bundle. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-11 The system logging messages provide information about the formation of the...
... Switch_B> (enable) show trunk No ports trunking. This example assumes that the neighboring ports on Switch A to negotiate a Gigabit EtherChannel bundle with the neighboring switch. Switch_A> (enable) show port channel No ports channelling Switch_A> (enable) show trunk No ports...3/6 1-1005, 1025-4094 Switch_B> (enable) Confirm the channeling and trunking status of the EtherChannel bundle. 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 11-11 The system logging messages provide information about the formation of the...