dot1q ----- SW 2950

Unanswered Question
Aug 12th, 2007


Does Sw 2950 support command:

switchport trunk encapsulation dot1q.

i did not find this command.

any help

I have this problem too.
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ankbhasi Sun, 08/12/2007 - 07:30

Hi Friend,

2950 only supports dot1q which is a default encapsulation and that is the reason command to configure dot1q is not available.

Just issue this command

"swutchport mode trunk" and you are good to go.



*Pls rate all helpfull post

cindylee27 Sun, 08/12/2007 - 18:38


Does it means that if there is other switches brand that only support EITF, 2950 wont be able to work with them?

Thanks in advanced.

sundar.palaniappan Sun, 08/12/2007 - 19:20

That's correct.

If there is another switch out there that's configured to do ISL encapsulation then 2950 wouldn't be able to form a trunk with it. 802.1q is industry standard protocol whereas ISL is Cisco Proprietary and therefore you probably mightn't run into a scenario where ISL is supported but not 802.1q.




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