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Cisco 6509-E and trunk ports

I am trying to configure a Gigabit Ethernet port on a WS-X6548-GE-45AF module as a trunk port using dot1q encapsulation. The interface accepts the commands below

(config-if)#switchport (config-if)#switchport mode trunk

It will not accept the (config-if)#switchport trunk encapsulation dot1q command saying

config-if)#switchport trunk encapsulation dot1q ^ % Invalid input detected at '^' marker.

Any ideas would be appreciated as I'm a little rusty and the IOS documentation suggests I'm doing the right thing.

Thanks, Nick

Reply to
njwhitworth
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It only does dot1q. The command is not needed.

Reply to
Brian V

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