Hello, We are seeing on one of our 6509 chassis high CPU load (50-90%). We are not seeing this on our other chassis and they are all optioned the same. The one difference is that this chassis is sending traffic on one incoming 10gig interface out to another 6509 where that traffic is destine to hit its gateway and then out to the internet.
Simple diagram is below. 10G serverB - 6509b - 6509a - asr9000 - internet 10G serverA - 6509a - asr9000 - internet While I know this is not ideal, it is what it is until B server can get moved to a different vlan. The issue is that 6509b has got high CPU load of 50-90% while 6509a has CPU load of 4%. Traffic from server B is about 4.8G and traffic from server B is about 5G. I have gone through the troubleshooting high CPU load on sup720 document here: https://community.cisco.com/t5/networking-documents/troubleshooting-high-cpu-on-a-6500-with-sup720/ta-p/3126932 and every time I find something that give me that Ah-ha moment, I check it on the other switch and see that it is the same or higher as to ACL usage or other items. So my question is, what is the best way to track down what this high CPU load is? CPU on 6509b: CPU utilization for five seconds: 62%/22%; one minute: 42%; five minutes: 42% CPU on 6509a: CPU utilization for five seconds: 3%/1%; one minute: 14%; five minutes: 14% Any help would be greatly appreciated. Pulling my hair out trying to figure out why. Thanks, -Lee _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
