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Thread: switchport issue

  1. #1
    Junior Member
    Join Date
    Jan 2012
    Posts
    35

    switchport issue

    I have a switch and i am creating VLANS and i am trying to set an interface to switchport mode trunk and gets error :
    Code:
    "command rejected : an interferance whose trunk encapsulation is AUTO can not be configured to TRUNK Mode"

  2. #2
    Junior Member
    Join Date
    Jan 2012
    Posts
    15
    Solution is so simple , just go to that interface and type switchport trunk encapsulation dot1q and then reset it to trunk
    Code:
    Switch(config)#int fa0/1
    Switch(config-if)#switchport trunk encapsulation dot1q
    Switch(config-if)#switchport mode trunk

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