From: Charles Church (cchurch@wamnet.com)
Date: Sun Mar 09 2003 - 14:07:40 GMT-3
Kurt,
It's very possible to overload certain areas of the network. Keep in mind
the 5000 series has a pretty dinky backplane compared to the mighty 6000s.
Probably a good idea to make the 5000 trunk ports high priority (I think the
command is 'port level'). A common code base might not be a bad idea to
rule any bugs out. I've found the later 6.3 CatOS releases to be pretty
stable. Use 'sh sys' and 'sh top' commands to keep an eye on the backplane
usage and the utilization of ports. If you're not currently pruning vlans,
that would also be a great thing to do, especially if you've got a lot of
broadcasts (who doesn't?). HTH.
Chuck Church
CCIE #8776, MCNE, MCSE
Wam!Net Government Services
13600 EDS Dr.
Herndon, VA 20171
cell 585-233-2706
cchurch@wamnet.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Kurt Kruegel
Sent: Saturday, March 08, 2003 11:09 PM
To: ccielab@groupstudy.com
Subject: any problems mixing 100mb and gb trunks ?
i'd like to ask a switching question.
we have a switch fabric of
2 6500's in the core
mffc's on each
and gb and 100mb line cards.
we have 20 2820's 100mb trunk
20 cat5000's 100mb trunk
and we are integrating
some 3548's
and 82 3550's
at gb to the core.
are there any potential issues with mixing 100/mb and 1000/mb trunks in the
network without pruning ?
i have been noticing that cat5000's see a lot of in-discards
when i looked it up it seemed to say that they are frames that could not be
switched.
also on some100/mb trunks off a 3548 i see giants and input errors.
the gb trunks show no problems.
could the 100mb be "choke points" until we go all gb ?
thanks.
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