From: Ramy Sisy (ramysisy@ipknowledgenet.com)
Date: Sat Apr 05 2008 - 04:16:00 ART
Hi Mohamed,
Enabling BPDU filtering on an interface is the same as disabling spanning
tree on it and can result in spanning-tree loops.
So I recommend you to solve the main problem, which is unidirectional link
failure (Just enable udld).
-----------------------------------------------
Thanks,
Ramy Sisy
CCIE#17321 (Security), CCSI#30417
Technical Instructor
http://www.linkedin.com/in/ramysisy
http://www.ccbootcamp.com
Toll Free: 877-654-2243
International: +1-702-968-5100
-----------------------------------------------
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
mohamed ouamer
Sent: Friday, April 04, 2008 10:31 PM
To: ccielab@groupstudy.com
Subject: STP Question
Hi GS,
Let me know your opinions about the following task:
"We are concerned about alternate/root ports becoming designate ports
bacause
of
unidirectional link failure?
configure for maximum effect."
I found two ways to accomplish this:
1. Adding the spanning-tree Loopguard command under the altenate/root port
on
all the switches except the root.
2.Adding the spanning-tree loopguard default command in the gloabal
configuration mode on all the switches.
Regards,
Mohamed.
This archive was generated by hypermail 2.1.4 : Thu May 01 2008 - 08:25:50 ART