RE: switch trunk allow vlan except 1 (valid for not allowing

From: Scott Vermillion (scott_ccie_list@it-ag.com)
Date: Fri Nov 02 2007 - 17:39:22 ART


Hey Alex,

With dot1q just do:

switch#(config)vlan dot1q tag native

And actually, that would be more correct, IMHO. "Tagged" to me means dot1q.
ISL is "encapsulated."

Regards,

Scott

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Alex
Steer
Sent: Friday, November 02, 2007 2:05 PM
To: CCIE Group Study CCIE Group Study
Subject: switch trunk allow vlan except 1 (valid for not allowing untagged
packets across a trunk?)

Hi,

Can anyone give their thoughts on this please?

Question:-

"All traffic sent over these trunk links should be tagged with a VLAN"

Int fa0/7

Swi trunk encap dot

Swi mode trunk

Swi trunk native vlan 1 (for completeness)

Swi trunk allow vlan except 1

The solution to this question required the configuration of the trunk to
be ISL. Being thick I forgot ISL tags all packets. Do the above
solution solve the question?

I have a funny feeling I have asked this before J

Cheers

Alex



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