Hi - Thanks for the feedback. Yes - same hardware (3845), sw, config and traffic. Just deployed as active/standby for HSRP. The chief suspect is the port channel between the ESWs but would like to get the info to confirm whether its spanning tree or another culprit.
Im unable to get any useful info out the box as when it occurs the CPU spikes and hits VTY so unable to get any commands back. Is there anyway to reserve a minimum amount of CPU to VTY so we can at least issue the commands while the problem is occuring? Regards, David ________________________________ From: Eninja <[email protected]> To: David Warner <[email protected]> Cc: "[email protected]" <[email protected]>; Eninja <[email protected]> Sent: Tuesday, 1 September, 2009 12:11:07 PM Subject: Re: [c-nsp] Troubleshooting High CPU What platform is the device? Are the primary and standby devices the same - platform, SW, config, traffic? During the spike, is the CPU consumed at interrupt or process level? Grab and send over sh proc cpu, sh align, sh int stat, sh log (if device is too unresponsive during failover, have onsite personnel pull out traffic-laden cables one by one until device is responsive, grab captures before reinserting cable/s). -Eninja PS. Disable console logging On Aug 31, 2009, at 10:46 PM, David Warner <[email protected]> wrote: > Hi All, > > Just wondering if I can get some advice.. We have two routers in a HSRP > active/standby pair. If ones reloads then the CPU on the other hits 100% and > crashes. The only way we can recover this is for a field engineer to pull all > the Ethernet cables out and then, when system is calm, repatch them. We > access the device via VTY so struggling to actually get any commands in to > troubleshoot as per the Cisco 'Troubleshooting High CPU Utilization' doc as > the CPU spikes . > > Any advice on best way to progress this? > > Regards, David > > > > > __________________________________________________________________________________ > Find local businesses and services in your area with Yahoo!7 Local. > Get started: http://local.yahoo.com.au > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ __________________________________________________________________________________ Find local businesses and services in your area with Yahoo!7 Local. Get started: http://local.yahoo.com.au _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
