Yeah, I was trying to think about that myself but I looked just briefly so I didnt notice if one of the switches looked like it was locked up. If it happens again I will focus on the switches more. This time the first thing I did was start looking at our DC's to see if they were having some kind of issue because initially I thought it was a DNS issue. Only when someone let me know the auto attendant for the phones wasn't working did it lead me to believe something was going on with the infrastructure.
James ----- Original Message ----- From: Don Ely - sc thinks I am a good man... To: NT System Admin Issues Sent: Wednesday, September 22, 2010 4:15 PM Subject: Re: My whole network went down! Flashing or solid? Sent from my Verizon Wireless BlackBerry ------------------------------------------------------------------------------ From: "James Kerr" <[email protected]> Date: Wed, 22 Sep 2010 16:12:53 -0400 To: NT System Admin Issues<[email protected]> ReplyTo: "NT System Admin Issues" <[email protected]> Subject: Re: My whole network went down! I did, they looked like they were all functioning but I didnt examine them closely, just saw that the lights were on on all of them. ----- Original Message ----- From: Erik Goldoff To: NT System Admin Issues Sent: Wednesday, September 22, 2010 2:52 PM Subject: RE: My whole network went down! Did you happen to take note of the link light status on the switches before you shut down the UPS ? Erik Goldoff IT Consultant Systems, Networks, & Security ' Security is an ongoing process, not a one time event ! ' From: James Kerr [mailto:[email protected]] Sent: Wednesday, September 22, 2010 2:45 PM To: NT System Admin Issues 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 ~ 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
