Hello everyone, I have a 48i summit switch. all ports are being used except for 6 ports. I have a VLAN set up with two different networks.  My switch seemed to just power off and reboot itself. Everyone lost connection, but regain connection after about a minute.  I looked on google and was able to find out to see when the switch rebooted. I noticed it rebooted at the time people lost connection. I could not find a command to tell what might have caused the switch to reboot. Are there any log commands or audit commmands that I could look at to tell what might have been the caused?  Has anyone ever experienced this and could share their experiences with me.  The UPS it was plug into was fine. None of the other devices were effected.  Thanks.

If you log into the switch, and do a show log, it will tell you if someone rebooted it via command. Could anyone of accidently knocked the power cable out and placed it back in? I have a couple 48i's and have never them or any Summit switch just reboot on it's own. Either power was interrupted to it, someone rebooted, or there's something wrong with the switch on the hardware and I would contact Extreme and have it RMA'd.

Thanks for the response rn4it.
I did a show log but really didnt know what to look for. Can you give me an example of what to look for it someone rebooted command line? Know power cable was fine. Like I said before, we have other deives hooked up to the same UPS unit and they were fine. I was reading somewhere that when a switch is over loaded with traffic, that can make it reboot, I am not sure if this is fact or fiction? It was weird because thats the second time its happen. The first time the UPS powered off and on. I dont have the latest firmware update, could that cause a problem.? Is that what you mean by RMA'd.  Thanks

sqlnovice2004, It should say in your log file that eg admin logged in and rebooted the server.

Well I supposed if you were a fairly large web or DB hosting and using the 48i as your core switch and all the port were constantly running at 90+% that may happen. I have never had nor heard from anyone of that happening, so I don't think it's that. Basically, RMA(Return to Manufacture's Agreement) you would need a support contract with Extreme. You would go through your vendor, then once you have the contract you could contact Extreme TAC, they'll most like request a show tech-support, and after reviewing state a course of action.