From: kurt (kurt@cybernex.net)
Date: Tue May 13 2003 - 15:47:23 GMT-3
I work in a large switched environment consisting
of cat5000, 2820 , 3500xl ,2950 xl and 80 new 3550's (most of which are being
implemented)
we recently enabled vtp pruning and had some bizarre layer two problems that
were helped by exempting certain affected vlans from pruning.
while setting up a 2950 i saw a message stating the that the platform only
supports 64 spanning tree instances.
i also previously noticed
no spanning-tree xxxx in the affected 3500xl and 2950's
i noticed that the no spanning-tree entries were all higher-nubered vlans.
so the lower-end switch must start at 1 and accept the first 64 numbered
vlans.
i tried to manually enable and nothing happened.
i went to our installed 3550's and sure enough all instances of spanning tree
were present and no instances were missing.
i had a ticket in with tac and they were unable to pick up on this.
so my question is :
is there a document or switch support matrix for switches and spanning-tree
support?
we are trying to make a case to standardize on 3550's and tac documents
illustrating a problem would help.
does anybody know of these limitations off hand ?
thanks
kurt
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