Re: Show commands

All,

Thank you for the replys. This is my setup,

two clustered 6509s feeding with etherchannel a 4506. The core via a firewall has a 100Mb link to another site. The application that had a problem was a web server based on our site, that got the username and password from the other site. Things were timing out when connecting early in the morning.

On chatting with a few of our systems guys, it was apparent there were a few more problems than just this, and it all started happening the time our SAN was introduced. I had a look where our SAN was patched onto our 4506, and all the network cards for it had been put onto a 48 port, contended blade and not one of the uncontended blades. Basically lots of our servers weren't spread out evenly enough over the switch, so I had a sort out, and so far, things are a lot better.

Next time I ask a question I'll supply a lot more detail, but at the time of writing, I just wanted to get something down.

Many thanks

James

J.Cottingim wrote:
This application fails every morning with an unspecified error and we
are told without a doubt it's a network issue. Me being the network
engineer have exhausted every possibility going looking into this.

Have you been able to predict the time that it fails based on past
failures.
You may be looking at a time out of some sort. My guess would be the
VPN. Is it an IPSec VPN?
What kind of LAN network do you have? If you have any LANE, I've known
some weird things to happen sscop.

Have you tried implementing QoS on the VPN? Is there any other traffic
in compitition for bandwidth with the VPN?

I have to agree with Trendkill... it's not a switch problem - unless
all the applications that flow through the switch fails at the same
time.

It seems there are more questions than answers here.

JC

.

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