From: Rodgers Moore (rodgers@xxxxxxxxxxxxxx)
Date: Fri Mar 02 2001 - 14:24:06 GMT-3
I've had a the same basic problem when configured for dot1q vlans, as I assume
you
are. I've also seen MLS freak out like there was a loop in the topology
(gratuitous "too many moves" warnings) and never converging (right term?). I
never found the loop. We have 3548's in the closets, 6509's at the core and a
few
5509's for legacy token-ring. This is a very redundant design. I'm testing th
e
theoroies, today, that these problems are related to either dot1q having only o
ne
spanningtree instance or the use of backbone fast. (or both).
I'll let you know if I come up with anything. If anyone wants to chime in, fee
l
free. You might save me some work. :)
Rodgers Moore
Joseph Cooper wrote:
> Hello Everyone
> Hope all is well today. I wanted to know if anyone has ran into the
> following problem.
>
> Operating Environment:
> Catalyst 6509 at the Core
> 2948Gs at the IDF closets.
>
> Problem:
> Various VLANS lose communication from time to time with the rest of the
> network:
> * Computers on the malfunctioning VLAN can't ping inside or outside
> of the
> VLAN.
> * The VLANs span multiple switches and none of the computers on the VLA
N
> can communicate.
> * Computers assigned to another VLAN on the same switch can communicate
> fine.
> * This is not specific to a one vlan, One day it could be vlan 10 the
> next
> day 12.
>
> Thank you in advance for your support. May everyone have a prosperous and
> peaceful day.
>
> Joseph
>
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:29:18 GMT-3