1st thing I would do is a Tracert from a Windows box, or Traceroute from a Unix box on the "2nd" subnet to the target server/host and see where the buck stops. This will tell you if it is a Routing issue, which is what I would first think of... but none-the-less, traceroute is your number one test tool for walking up the troubleshooting chain.
Once you've verified cross-subnet communications (which will be proving both physical and logical connections, the end result will define your next step on how to rectify the problem. You might even have a simple Subnet Mask issue. For looking at bad juju on the CAT5K, do a to reset all the counters for all ports, and then within a 5 to 10 minute period, do a from the CLI and look for high levels of packet errors. Hope this helps. Mark Odette II StellarConnection Services -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brown, M Sent: Wednesday, November 14, 2001 4:48 PM To: [EMAIL PROTECTED] Subject: One subnet presents bad performance. How can I see troubleshoot [7:26299] In one particular subnet, this morning users got timed out trying to ftp to a certain server or Telnet to that server. If I perform the operation from another subnet, that's work fine and no time out or delays occur. I used Netmon to analyze the telnet process both on the subnet "1" - the subnet that is working and subnet "2", which has presented problems. I couldn't see any new protocol or broadcast that could cause the delay on the network. What's the command to see statistics or look for errors in the Catalyst 5000 series switch ? How would be the steps to troublshoot this ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26302&t=26302 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
