Hi, We have a C2 stack member (#3 in a stack of 5) which has high CPU utilisation. It's not the manager of the stack. The stack is 5 identical C2G-124-48P's and firmware revision although not the most recent, is not that old: 05.02.03.0012 Spanguard is on and no ports are in the 'locked' state to indicate a loop. I know there was a specific circumstance on this list that someone mentioned a while ago, where spanguard wouldn't detect a loop in some circumstances, but can't remember what that was, or how you go about troubleshooting it. Could anyone give an overview of the troubleshooting steps they would use to diagnose high CPU utilisation on a C-series stack member? Also - what are typical CPU utilisation figures on your C2 stacks? Ours seem high given that these only have basic configuration on - no policy etc. Notably, we do use SNMP v3 auth+priv which is polled periodically by Nagios. In addition, on that site, we do have a large broadcast domain (>400 devices) which we have plans to VLAN down, but not sure that would contribute significantly to such high utilisation. WhitSt C2 5th Floor Edge(su)->show system utilization cpu CPU Utilization Threshold Traps enable: Threshold = 80.0% Total CPU Utilization: Switch CPU 5 sec 1 min 5 min ------------------------------------------------- 1 1 64% 44% 44%
A 3 member stack, comprised of 3 x C2H124-48P's shows this: WhitSt C2 2nd Floor Edge(su)->show system utilization cpu CPU Utilization Threshold Traps enable: Threshold = 80.0% Total CPU Utilization: Switch CPU 5 sec 1 min 5 min ------------------------------------------------- 1 1 22% 19% 19% WhitSt C2 2nd Floor Edge(su)-> Thanks, Nick. This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is proprietary, privileged, confidential and/or otherwise protected from disclosure. If you received this e-mail in error, any review, use, dissemination, distribution or copying of this e-mail is strictly prohibited. Please notify us immediately of the error via e-mail to [email protected] and please delete the e-mail from your system, retaining no copies in any media. We appreciate your cooperation. This e-mail is intended only for the named person or entity to which it is addressed and contains valuable business information that is privileged, confidential and/or otherwise protected from disclosure. Dissemination, distribution or copying of this e-mail or the information herein by anyone other than the intended recipient, or an employee or agent responsible for delivering the message to the intended recipient, is strictly prohibited. All contents are the copyright property of TBWA Worldwide, its agencies or a client of such agencies. If you are not the intended recipient, you are nevertheless bound to respect the worldwide legal rights of TBWA Worldwide, its agencies and its clients. We require that unintended recipients delete the e-mail and destroy all electronic copies in their system, retaining no copies in any media.If you have received this e-mail in error, please immediately notify us via e-mail to [email protected]. We appreciate your cooperation. We make no warranties as to the accuracy or completeness of this e-mail and accept no liability for its content or use. Any opinions expressed in this e-mail are those of the author and do not necessarily reflect the opinions of TBWA Worldwide or any of its agencies or affiliates. --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
