From: Reza Toghraee (reza@toghraee.com)
Date: Wed Sep 26 2007 - 08:53:11 ART
Hello
I found that if the native vlan on the SW1 is different than the native vlan
on SW2 the DTP cannot negotiate and no trunks will be created.
But how if we disable DTP and put the both ports in no-negotiate , dot1Q ?
it will work or not ?
I tried with Dynamips but it didn't work.
Reza
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
davidytk
Sent: Wednesday, September 26, 2007 1:45 PM
To: 'Navid Daghighi'; 'Cisco certification'
Subject: RE: 3550 why does vlan int go down
Why 2 native VLAN not the same. If SW1 and SW2 are connected via Trunk, the
native vlan should be same.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Navid Daghighi
Sent: Tuesday, September 25, 2007 5:26 PM
To: Cisco certification
Subject: 3550 why does vlan int go down
Hi,
In this simple example, where I configured a mismatch native vlan :
sw 1 : dot1Q, native vlan = 1
sw 2 : dot1Q, native vlan = 2
SH IP INT BRIEF shows that :
fa0/x stays up/up
vlan1 goes up/down
What is the logic behind this behavior ?
I would have expected the fa0/x to go up/down !
Thanks,
Navid
This archive was generated by hypermail 2.1.4 : Sat Oct 06 2007 - 12:01:16 ART