I really dislike dumb switches. Given their dumbness it sounds like a broadcast storm possibly caused by a bad NIC and will be a pain to track with such dumb switches...
When we had dumb switches, we couldn't find the source and I talked management into smart switches. Once we had those in place it took 5 minutes to find the source... Sent from my Verizon Wireless BlackBerry -----Original Message----- From: "James Kerr" <[email protected]> Date: Wed, 22 Sep 2010 14:54:41 To: NT System Admin Issues<[email protected]> Reply-To: "NT System Admin Issues" <[email protected]>Subject: Re: My whole network went down! LOL! Only one is managed, the rest are all just dumb. ----- Original Message ----- From: Don Ely - sc thinks I am a good man... To: NT System Admin Issues Sent: Wednesday, September 22, 2010 2:49 PM Subject: Re: My whole network went down! Uhhhh... What kind of switches? If they were Cisco you'd have magic ninja support that could help you isolate the issue without bouncing the network. If they were HP switches, their support might not know what to do but they will ship out a new switch to you overnight.... But really, if these are managed switches you should be able to see what's happening at the port level to determine the source of the problem... Sent from my Verizon Wireless BlackBerry ------------------------------------------------------------------------------ From: "James Kerr" <[email protected]> Date: Wed, 22 Sep 2010 14:45:01 -0400 To: NT System Admin Issues<[email protected]> ReplyTo: "NT System Admin Issues" <[email protected]> Subject: My whole network went down! So anyway, we lost all connectivity around noon at our main office. After some various checks on the servers, I try to ping some of them from my workstation and every so often I get a reply but mostly its timing out. I go to our wire closet and shut off the UPS that all our switches are on, bring them back up and low and behold everything is working again. Anyone have any idea what one of these switches was doing to bring the network to its knees? If it happens again I will restart them individually to see which one caused the drama. Network was down for 45 minutes, not happy. James ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
