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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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... it is for experienced network administrators who are responsible for configuring and maintaining Catalyst enterprise LAN switches. 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 how to perform a baseline configuration of the... and explains how spanning tree works. Configuring Spanning Tree Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles.
... it is for experienced network administrators who are responsible for configuring and maintaining Catalyst enterprise LAN switches. 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 how to perform a baseline configuration of the... and explains how spanning tree works. Configuring Spanning Tree Describes how to configure Fast EtherChannel and and Gigabit EtherChannel Gigabit EtherChannel port bundles.
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... port group and can burst up to servers and hosts that are used by Server A. Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Table 5-8 shows how the oversubscribed ports are grouped for each connected port (1 Gbps total)....group. Each workstation connects 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 workstation can bundle multiple oversubscribed ports into a Gigabit ...
... port group and can burst up to servers and hosts that are used by Server A. Chapter 5 Configuring Gigabit Ethernet Switching Understanding How Gigabit Ethernet Works Table 5-8 shows how the oversubscribed ports are grouped for each connected port (1 Gbps total)....group. Each workstation connects 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 workstation can bundle multiple oversubscribed ports into a Gigabit ...
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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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... Fast Ethernet and Gigabit Ethernet switch ports on the Catalyst enterprise LAN switches. 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.
... Fast Ethernet and Gigabit Ethernet switch ports on the Catalyst enterprise LAN switches. 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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...and LACP Port Aggregation Control Protocol (PAgP) and Link Aggregation Control Protocol (LACP) allow ports with adjoining switches. All ports in IEEE 802.3ad, allows Cisco switches to be the same speed. You can be run only on the low-order bits of the source and...determine whether your hardware, you can form an EtherChannel with devices that can configure both Fast and Gigabit EtherChannel bundles as a trunk. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Ports in the channel. PAgP is sent when a failure ...
...and LACP Port Aggregation Control Protocol (PAgP) and Link Aggregation Control Protocol (LACP) allow ports with adjoining switches. All ports in IEEE 802.3ad, allows Cisco switches to be the same speed. You can be run only on the low-order bits of the source and...determine whether your hardware, you can form an EtherChannel with devices that can configure both Fast and Gigabit EtherChannel bundles as a trunk. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-2 78-15486-01 Ports in the channel. PAgP is sent when a failure ...
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... Setting 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 PAgP Statistics, page... administrative group, designated by an integer between 1 and 1024, inclusive, to display the EtherChannel ID. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01
... Setting 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 PAgP Statistics, page... administrative group, designated by an integer between 1 and 1024, inclusive, to display the EtherChannel ID. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-6 78-15486-01
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...unsure which ports you can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are allowed to form an EtherChannel bundle. In addition, a channel ID is defined automatically. Create an EtherChannel with the auto and desirable... how to create an EtherChannel bundle and verify the 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 When you create an EtherChannel port bundle, an administrative group is assigned...
...unsure which ports you can configure as an EtherChannel, verify the EtherChannel capabilities for the module or switch you are allowed to form an EtherChannel bundle. In addition, a channel ID is defined automatically. Create an EtherChannel with the auto and desirable... how to create an EtherChannel bundle and verify the 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 When you create an EtherChannel port bundle, an administrative group is assigned...
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...have port VLAN cost, while the remaining VLANS in a trunk channel. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to its default configuration, perform this task in privileged mode: Step 1 Step 2 Task Command Return a ...The spanning tree port VLAN cost provides an alternate cost 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 how to set the EtherChannel VLAN cost for channel ...
...have port VLAN cost, while the remaining VLANS in a trunk channel. Console> (enable) Removing an EtherChannel Bundle To return a Fast EtherChannel or Gigabit EtherChannel bundle to its default configuration, perform this task in privileged mode: Step 1 Step 2 Task Command Return a ...The spanning tree port VLAN cost provides an alternate cost 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 how to set the EtherChannel VLAN cost for channel ...
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...enable) Displaying EtherChannel PAgP Statistics To display EtherChannel PAgP statistics, perform one of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11-9. Display EtherChannel PAgP statistics by EtherChannel administrative group....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-Release 8.1 78-15486-01 Configuration...
...enable) Displaying EtherChannel PAgP Statistics To display EtherChannel PAgP statistics, perform one of configuring VLAN trunks on EtherChannel port bundles, see the "Example VLAN Trunk Configurations" section on page 11-9. Display EtherChannel PAgP statistics by EtherChannel administrative group....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-Release 8.1 78-15486-01 Configuration...
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..., and duplex. Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration Examples Figure 6-1 Example of the EtherChannel bundle. VLAN 1 modified. 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 Switch_A> (enable) Switch_B> (enable) set to full-duplex. Switch_A> (enable) set...
..., and duplex. Chapter 6 Configuring Fast EtherChannel and Gigabit EtherChannel EtherChannel Configuration Examples Figure 6-1 Example of the EtherChannel bundle. VLAN 1 modified. 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 Switch_A> (enable) Switch_B> (enable) set to full-duplex. Switch_A> (enable) set...
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...to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected 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 EtherChannel ...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...
...to configure a two-port Gigabit EtherChannel link between two switches. Figure 6-2 shows two switches connected 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 EtherChannel ...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...
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... system logging messages provide information about the formation of a Gigabit EtherChannel Port Bundle Switch A 2/1 2/2 3/1 Switch B 3/2 23922 Gigabit EtherChannel port bundle To configure a two-port Gigabit EtherChannel link between two switches, follow these steps: Step 1 Step 2 Step 3 Make sure that ... 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 VLAN Mod/Ports 100 3/1-2 Switch_B> (enable) Confirm the channeling status of the EtherChannel bundle on both ends of the switches using the show port...
... system logging messages provide information about the formation of a Gigabit EtherChannel Port Bundle Switch A 2/1 2/2 3/1 Switch B 3/2 23922 Gigabit EtherChannel port bundle To configure a two-port Gigabit EtherChannel link between two switches, follow these steps: Step 1 Step 2 Step 3 Make sure that ... 3/1-2 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 6-15 VLAN Mod/Ports 100 3/1-2 Switch_B> (enable) Confirm the channeling status of the EtherChannel bundle on both ends of the switches using the show port...
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... sections if you may turn channeling off Description Mode that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding the LACP Chapter 6 Configuring Fast EtherChannel and ...Gigabit EtherChannel Step 4 After the EtherChannel bundle is connected to channel without LACP. Switch_A> (enable) show port ...
... sections if you may turn channeling off Description Mode that prevents the port from channeling. 6-16 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01 Understanding the LACP Chapter 6 Configuring Fast EtherChannel and ...Gigabit EtherChannel Step 4 After the EtherChannel bundle is connected to channel without LACP. Switch_A> (enable) show port ...
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...or removed from nonparticipation in the topology to the forwarding state, it can start forwarding frames. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of the aggregate link increases or decreases. They must wait for obtaining default 32-bit ...port costs is removed from links that have been forwarded using STP is in one of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
...or removed from nonparticipation in the topology to the forwarding state, it can start forwarding frames. When a switch port transitions directly from an aggregate link (port bundle), the bandwidth of the aggregate link increases or decreases. They must wait for obtaining default 32-bit ...port costs is removed from links that have been forwarded using STP is in one of these states: • Blocking 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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...port cost mode: Console> (enable) set spantree defaultcostmode long Portcost and portvlancost 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 Portvlancost. - Using PVST+ Chapter 7 Configuring Spanning Tree Port Vlan Port-State ..., the actual cost is using PVST+ spanning tree mode, all the ports to slower media. For port speeds of a bundle using the formula, AVERAGE_COST/NUM_PORT. You should assign lower numbers to ports that are two default port cost modes available-short and...
...port cost mode: Console> (enable) set spantree defaultcostmode long Portcost and portvlancost 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 Portvlancost. - Using PVST+ Chapter 7 Configuring Spanning Tree Port Vlan Port-State ..., the actual cost is using PVST+ spanning tree mode, all the ports to slower media. For port speeds of a bundle using the formula, AVERAGE_COST/NUM_PORT. You should assign lower numbers to ports that are two default port cost modes available-short and...
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... IEEE 802.1Q-802.1Q trunking encapsulation. This chapter consists of multiple VLANs over a single link and allow you to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 11 C H A P T E R Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports This chapter ... Trunks Work The following sections describe how VLAN trunks work on a Fast or Gigabit EtherChannel bundle. For more switch ports and another networking device such as a router or a switch. Note For complete syntax and usage information for the commands used in this chapter, refer ...
... IEEE 802.1Q-802.1Q trunking encapsulation. This chapter consists of multiple VLANs over a single link and allow you to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference. 11 C H A P T E R Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports This chapter ... Trunks Work The following sections describe how VLAN trunks work on a Fast or Gigabit EtherChannel bundle. For more switch ports and another networking device such as a router or a switch. Note For complete syntax and usage information for the commands used in this chapter, refer ...
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... contains examples of a VLAN trunk configurations: Note For examples of VLAN 1. To configure the switches to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as an 802.1Q trunk link, follow these steps: Step 1 Make sure that all ports... 11-1 IEEE 802.1Q Trunk over a Gigabit EtherChannel link 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 Gigabit EtherChannel Link Example This ...
... contains examples of a VLAN trunk configurations: Note For examples of VLAN 1. To configure the switches to form a four-port Gigabit EtherChannel bundle, and then configure the EtherChannel bundle as an 802.1Q trunk link, follow these steps: Step 1 Make sure that all ports... 11-1 IEEE 802.1Q Trunk over a Gigabit EtherChannel link 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 Gigabit EtherChannel Link Example This ...
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...Switch_A> (enable) show trunk command to all of the ports in the bundle. The system logging messages provide information about the formation of the ports in the EtherChannel bundle to use dot1q or negotiate encapsulation and are configured to negotiate an 802.1Q...dot1q 2/6 desirable dot1q Status -----------trunking trunking trunking trunking Native vlan ----------1 1 1 1 Port -------- 2/3 2/4 2/5 2/6 Vlans allowed on Switch B are in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
...Switch_A> (enable) show trunk command to all of the ports in the bundle. The system logging messages provide information about the formation of the ports in the EtherChannel bundle to use dot1q or negotiate encapsulation and are configured to negotiate an 802.1Q...dot1q 2/6 desirable dot1q Status -----------trunking trunking trunking trunking Native vlan ----------1 1 1 1 Port -------- 2/3 2/4 2/5 2/6 Vlans allowed on Switch B are in management domain 11-10 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 78-15486-01
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... not pruned 3/3 1-1005, 1025-4094 3/4 1-1005, 1025-4094 3/5 1-1005, 1025-4094 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...
... not pruned 3/3 1-1005, 1025-4094 3/4 1-1005, 1025-4094 3/5 1-1005, 1025-4094 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...