From: Bob Sinclair (bob@bobsinclair.net)
Date: Thu Oct 13 2005 - 23:09:58 GMT-3
Matthew,
Here are some of my notes:
BPDU Guard:
error-disables port if a portfast port receives a bpdu
enable on all portfast ports: spanning-tree portfast bpduguard default
enable per port: spanning-tree bpduguard [enable disable]
BPDU Filtering:
When enabled globally prevents portfast ports from sending bpdus. If bpdu is
received, port becomes non-portfast and filtering is disabled
spanning-tree portfast bpdufilter default
On interface: DISABLES STP on the port: very dangerous!
spanning-tree bpdufilter enable
Global is recommended, per interface is dangerous.
HTH,
Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net
----- Original Message -----
From: Matthew Seppeler
To: ccielab@groupstudy.com
Sent: Thursday, October 13, 2005 8:09 PM
Subject: Difference between bpduguard & bpdufilter
Can someone explain the differences between bpduguard & bpdufilter and
under which circumstances they would it best be used. The Doc CD does
not make a clear distinction between the two.
Matt Seppeler
_______________________________________________________________________
Subscription information may be found at:
http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sun Nov 06 2005 - 22:00:50 GMT-3