Difference between revisions of "VLAN Trunk Cisco IOS"
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Revision as of 14:51, 23 July 2009
Configuring a trunk port
Cisco materials
VLAN trunks
A VLAN trunk is a connection between two switches where traffic from one or more VLAN's are transmitted between switches.
Configuring Trunk ports
Basic Cisco 2950 and 2960 switch configuration
Cisco 2950 and 2960 switch series only supports the 802.1Q - DOT1Q - trunk protocol.
SW2(config)#<input>interface gigabitEthernet 0/1</input>
SW2(config-if)#<input>switchport mode trunk</input>Basic Cisco 3550 and 3560 switch configuration
Cisco 3550 and 3560 switch series supports the 802.1Q - DOT1Q - and Cisco ISL trunk protocols.
CoreSW1(config)#<input>int fastEthernet 0/24</input>
CoreSW1(config-if)#<input>switchport trunk encapsulation dot1q</input>
CoreSW1(config-if)#<input>switchport mode trunk</input>IEEE 802.1Q trunk protocol
The IEEE 802.1Q is a trunk protocol defined by IEEE. See the related articles.