Re: What is this Cisco process?
Ingen, How did you know this? And I quote "Well, I have no direct experience with the 3560, but SFF-8472 is a spec that includes diagnosting monitoring of SFPs...". Really am I missing some secret search engine? Is google not the answer? Please do let me know because if it was from an online resource I want to know what it is. Thanks again for the response... you solved my problem. Cheers, Joe On Tue, Mar 29, 2011 at 4:06 AM, Ingen Schenau, Jeroen van (ICTS) < j.vaningenschenau@utwente.nl> wrote:
Hi,
Have a Cisco 3560 running "flash:/c3560-ipbasek9-mz.122-55.SE1.bin". Been running at 20% CPU since we started it:
[image: plf-access - CPU Usage]
The switch is completely layer-2... basic configuration. CPU utilization is soley based on a single process:
plf-access#sh proc cpu sorted CPU utilization for five seconds: 27%/0%; one minute: 25%; five minutes: 24% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 41 232891470 1072247 217210 20.12% 18.99% 18.01% 0 SFF8472
Well, I have no direct experience with the 3560, but SFF-8472 is a spec that includes diagnosting monitoring of SFPs...
Not sure why this would take up so many cpu cycles... are you by any chance continuously polling the switch for SFP readouts, ie optical receive power, laser bias, SFP temperature etc?
Regards,
Jeroen van Ingen ICT Service Centre University of Twente, P.O.Box 217, 7500 AE Enschede, The Netherlands
-- Joe Renwick IP Network Consultant, CCIE #16465 GO NETFORWARD! Direct: 619-800-2055, Emergency Support: 800-719-0504 Is your network moving you forward?
Hi Joe,
How did you know this? And I quote "Well, I have no direct experience with the 3560, but SFF-8472 is a spec that includes diagnosting monitoring of SFPs...". Really am I missing some secret search engine? Is google not the answer? Please do let me know because if it was from an online resource I want to know what it is.
Well, I was triggered by the SFF designation because I've been hacking SFP transceivers in my spare time... with the huge price markups on transceivers by the big vendors, it's getting more interesting to buy quality SFPs and alter the ID strings in a way that they are recognized as "genuine Cisco" of "genuine HP". Googling for SFF8472 will also get you hits (eg a great PDF at ftp.seagate.com), but they might not seem relevant at first glance :)
Thanks again for the response... you solved my problem.
Good to hear and you're welcome :) Regards, Jeroen van Ingen ICT Service Centre University of Twente, P.O.Box 217, 7500 AE Enschede, The Netherlands
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