Occasionally some of my 2940's or 2950's will become unmanageable. That is layer 2 traffic passes through it but I can no longer telnet, ping, or anything the switch itself. Has anyone else had this problem? I thought it was maybe a memory issue.
Have you monitor the memory utilization before or after this happened. What do you do when this problem happens. What is the IOS running on the switches. Did you check the switch logs for some errors on this.
It could be related to some software issues as well. Have you tried upgrading the IOS on thye switches.
I usually had this problem after imaging computers. After configuring igmp snooping and getting pim set up on my router, I have not had this problem since. the only way for me to recover was to reboot the switch.
Use the show mem command and look under Largest(b), which is the largest amount of contiguous bytes available. Check to see if that number is droppong. As far as new IOS, if you have smartnet you can download a new image from CCO.
I've seen this happen on several switches as well. In my case it happened because of a process that ran to long in CPU which itself turned out to be a bug (which only showed under mediate or high traffic patterns when multiple vlan interfaces where configured).
Typical recommendation here is to check your current version's release notes to see if there are any caveats and upgrade the switch to the latest release.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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