This is a hard one to pinpoint. A lot of the network health products do not record spikes. In general, if I recall, 40% average is cause to begin thinking of upgrading to another platform or processor. During my time in the NOC, I never was able to practice this mind you. The issues generally centered around some 7513 with AIP's and an RSP2, that Open View didn't have in it's database. I had a number of LANE router cook up into the 90's
.02 Phil ----- Original Message ----- From: To: Sent: Monday, November 19, 2001 5:34 PM Subject: Re: CPU Usage - How Much Is Too Much? [7:26739] > From personal experience I'd put that figure at 3% too high :-) > In the dim dark past we were running some 7500s with badly overloaded RSPs. > They would run with no discernible problems up to 97% or 98% CPU. Then > late morning the traffic load would build up, and output queues on some of > the ports would eventually overrun, and DLSW circuits would start to > bounce, and the network would go into meltdown very spectacularly. > For various reasons it took us a while to get hold of upgraded RSPs, so > peak hour wasn't a lot of fun for us or the network users... > > YMMV. I do *not* recommend running at 97% CPU on a production network. > > JMcL > ----- Forwarded by Jenny Mcleod/NSO/CSDA on 20/11/2001 09:26 am ----- > > > "MADMAN" > > cc: > Sent by: Subject: Re: CPU Usage - How > Much Is Too > nobody@groups Much? > [7:26739] > > tudy.com > > > > 20/11/2001 > 06:06 > am > > Please > respond > to > > "MADMAN" > > > > > > > 101% > > but seriously there is no hard 'n fast number but there is no reason > you can't run at 60-70%, leaving enough room for burst in CPU activity > so that you never hit 101%. > > Dave > > Andrew Michael wrote: > > > > Hi everyone. > > > > Percentage-wise, what is the general consensus on excessive CPU usage > on > a > > router? > > > > Thanks in advance. > -- > David Madland > Sr. Network Engineer > CCIE# 2016 > Qwest Communications Int. Inc. > [EMAIL PROTECTED] > 612-664-3367 > > "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26786&t=26739 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
