Catalyst 2950's *Locking* Up... HELP!

PBroome51 · ‎06-30-2003

I'm currently running 15 Catalyst 2950s (which are cascaded in groups of 3 from a 3550). At random intervals in the day, one or more of the 2950s (different one each time) is just *locking up* (lights go solid) - the problem can only be rectified by restarting the switch.

This is starting to get somewhat annoying... Does anybody have any idea of anything that could be causing this. (Configuration-wise, I suspect...)

(The switches are all set to basic configuration, the only things set on them are individual IP addresses, host names, default gateway and DHCP server address). *Any* suggestions gratefully received...

(sorry posted in wrong area, I know...)

knguyen00 · ‎06-30-2003

Are you running VLAN? Have you checked which ports are down? You might want to reset the switches that are having the problem. I believed if you hold down the button while plugging the power back in, it will reset the router. From there you can set the IP address for VLAN1.

Hope this helps.

knguyen00 · ‎06-30-2003

I mean if you plug in the switch (not router).

jawad1979 · ‎07-01-2003

Could you please describe your physical network in a more specific way?

PBroome51 · ‎07-02-2003

Many thanks for all the suggestions. It turns out the problem is being caused by a broadcast storm, emanating from a new *Dell laptop (D600) with a Broadcom Gigabit NIC* which a user has been testing on the network.

I should've guessed...