From: Roland Dobbins (rdobbins@cisco.com)
Date: Fri Mar 23 2007 - 17:04:51 EST
On Mar 23, 2007, at 1:18 PM, WALI wrote:
> Anyone...anything???
Could it be DNS or some other name-resolution service you're using?
Could it be the autonegotiate between the routers? Why not go ahead
and nail up the link?
What's the CPU load on the routers (baselined with MRTG)? What kind
of routers are they? Are they dedicated to this one link, or are
they handling other connections?
There are a lot of physical stats you can get on layer-2 ports from
any vendor's products, all kinds of errors to look for, etc. on the
routers and the switches.
Can you enable NetFlow on the routers and export it to something like
nfdump/nfsen in order to get the traffic breakdown?
Is access to other things impacted? Have you enabled spantree
portfast or its equivalent on the switches? Is a spanning-tree
recalc happening for some reason? The syslog from the switches
should tell you that.
Those are the kinds of things I'd look for, FWIW.
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