>From what I understand the bridge id is comprised of two things.
A. MAC ADDRESS
B. PRIORITY
Do a show spantree to see what I mean.
Snip>
CAT5K (enable) sh spantree
VLAN 1
Spanning tree enabled
Spanning tree type ieee
Designated Root XX-XX-XX-XX-XX-XX
Designated Root Priority 0
Designated Root Cost 3004
Designated Root Port 1/1
Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Bridge ID MAC ADDR XX-XX-XX-XX-XX-XX
Bridge ID Priority 49152
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port Vlan Port-State Cost Priority Portfast
Channel_id
------------------------ ---- ------------- ----- -------- ----------
----------
1/1 1 forwarding 3004 32 disabled 0
1/2 1 blocking 3004 32 disabled 0
Don't know of a way to change the mac address other than swapping the
supervisor module out, but I would think that changing the priority would
meet the requirements.
>>> "Church, Chuck" 04/11/02 08:11AM >>>
Tim,
Change your Supervisor! From what Manny Gonzalez found out from
numerous Cisco sources, it's almost impossible. There are some diagnostic
versions of code that support it, but probably not available to most of us.
Chuck Church
Sr. Network Engineer
CCIE #8776, MCNE, MCSE
US Tennis Association
70 W. Red Oak Lane
White Plains, NY 10604
914-696-7199
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Timothy Ouellette
Sent: Thursday, April 11, 2002 2:30 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Change the Bridge ID on a cat5k
Scouring cisco for an answer that someone mentioned.
I'm trying to change the Bridge-ID (BID) for a particular vlan on a
cat5k. I know it's possible if I just change the priorty for that
particular vlan. Is it possible to change the mac address on a vlan so
that the BID will change without change the prioty. Here's the question
that was posed "how does one change the bridge ID for VLAN 200 on a
Catalyst 5000 (os is 5.5(10)b"
Can anyone help?
Tim
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