> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:cisco-nsp- > [EMAIL PROTECTED] On Behalf Of Howard Jones > Sent: Tuesday, March 11, 2008 8:10 PM > To: [email protected] > Subject: [c-nsp] Can "power-on" mean anything other than power on? > > Hi, > > Please could I get the confirmation of your collective experience? > > We have a group of three older Catalysts at a customer site that > apparently reboot all together (within a second) and for no reason every > 10-15 days or so. > > On each switch, for show version it shows: > System returned to ROM by power-on > [...] > Last reset from warm-reset > > Can this mean anything *other* than the obvious reason that something > onsite disconnected the switches from their power supply (bad PDU, > breaker, cable, office cleaner etc)? > > I'm hoping that it can't, because it would be a much simpler explanation > than anything software-related that affects two different switch product > ranges and two different IOS versions, but I was curious for a second > opinion before we get the witchhunt going ;-) > > Thanks in advance for any confirmation or extra info, > > Howie
I am sorry to say that I have experienced this before and the problem was *not* the switch losing power. We have a remotely-deployed 3548XL-EN that for some reason was reloading out of the blue - first it would reload every few hours. Then it got to the point where it would stay up for several seconds, then reload. The message showed exactly what you posted above and we immediately thought that the power cable was bad or loose, since it was on a UPS. Going on-site, I checked everything and found no problems with the power. After some troubleshooting, I found out that there was a "bad" device connected to one of the switchports that was sending data that caused the switch to reload without generating a software error. I ended up finding this after having disabled every port, then enabling them one by one. We're running: IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5)WC10, RELEASE SOFTWARE (fc1) HTH, evt _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
