configuring 802.1q on 2600's ethernet interface

Unanswered Question
Jul 17th, 2007
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Is 802.1q on 2620's ethernet interface possible. coz as far as im concerned it only works on fast ethernet interface..i dont have any fast ethernet on my 2600 router..i just want to make sure on this. coz i tried to configure my 2600, and there is a command for i configured my trunking and it does not work at all. or is there something wrong with my setup..anyway, here is my config:


interface FastEthernet0/1

switchport trunk encapsulation dot1q


interface FastEthernet0/2

switchport access vlan 2

spanning-tree portfast


interface FastEthernet0/3

switchport access vlan 3

spanning-tree portfast


interface Ethernet0/0

description Connection to LAN

no ip address

ip accounting output-packets



interface Ethernet0/0.1

description TO-GACI

encapsulation dot1Q 1 native

ip address


interface Ethernet0/0.2

description GPS

encapsulation dot1Q 2

ip address


interface Ethernet0/0.3

description TO-ZHAPA

encapsulation dot1Q 3

ip address

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mohammedmahmoud Tue, 07/17/2007 - 10:32
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Despite it is said in the books that it is not supported on Ethernet interfaces (only FE and GE), practically it works out on Ethernet, however there is a possibility that you have come across Caveat CSCds42715, in which the 802.1Q native VLAN keyword does not function properly, please check the status and a brief description of the bug by using the Bug Toolkit (registered customers only) and entering the bug ID CSCds42715.


Mohammed Mahmoud.


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