802.1Q Trunk Over Etherchannel Link Example - Cisco WS-C6506 Software Manual

Example VLAN Trunk Configurations
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Port
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Port
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Switch_B> (enable)

802.1Q Trunk Over EtherChannel Link Example

This example shows how to configure an 802.1Q trunk over an EtherChannel link between two switches.
Figure 5-2
Figure 5-2
To configure the switches to form a four-port EtherChannel bundle and then configure the EtherChannel
bundle as an 802.1Q trunk link, perform these steps:
Make sure that all ports on both Switch A and Switch B are assigned to the same VLAN by entering the
Step 1
set vlan command. This VLAN is used as the 802.1Q native VLAN for the trunk. In this example, all
ports are configured as members of VLAN 1.
Switch_A> (enable) set vlan 1 2/3-6
VLAN
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1
Switch_A> (enable)
Switch_B> (enable) set vlan 1 3/3-6
VLAN
---- -----------------------
1
Switch_B> (enable)
Confirm the channeling and trunking status of the switches by entering the show port channel and show
Step 2
trunk commands.
Switch_A> (enable) show port channel
No ports channelling
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
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1-1005, 1025-4094
Vlans allowed and active in management domain
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1-5,10,20,50,152,200,300,400,500,521-524,570,850,917,999
1-5,10,20,50,152,200,300,400,500,521-524,570,850,917,999
Vlans in spanning tree forwarding state and not pruned
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1-5,10,20,50,152,200,300,400,500,521-524,570,801,850,917,999
1-5,10,20,50,152,200,300,400,500,521-524,570,801,850,917,999
shows two switches that are connected through four 1000BASE-SX Gigabit Ethernet ports.
802.1Q Trunk Over EtherChannel Link
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Switch A
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Gigabit EtherChannel
IEEE 802.1Q trunk link
Mod/Ports
2/1-6
Mod/Ports
3/1-6
3/3
Switch B
3/4
3/5
3/6
Chapter 5 Configuring Ethernet VLAN Trunks
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