cat4500e dot1q encapsulation command fails

Unanswered Question
Jul 18th, 2012
User Badges:

     I have a Catalyst 4500 L3 Switch Software (cat4500e UNIVERSAL-M), Version 03.02.00.XO RELEASE SOFTWARE (fc2). So I just wanted to verify that the switch only does dot1q encapsulation because the switchport trunk encapsulation dot1q command does not work. Is this documented somewhere.            

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
glen.grant Wed, 07/18/2012 - 13:41
User Badges:
  • Purple, 4500 points or more

  You can be reasonably sure if the commands are not there it is all it supports . I believe you can check with something like show int capabilities .

Leo Laohoo Wed, 07/18/2012 - 15:27
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Depends on your linecard (not the supervisor card).

Some line card will only support 802.1Q so entering the command will result in an error message.

As what Glen has posted, if you enter the command "sh interface cap" and scroll down to "Trunk encap. type".  If you get only 802.1Q then this is the reason.


This Discussion

Related Content