Partial CoC Network, Websites Outage

WHAT HAPPENED?
Networking was unavailable in KACB.  The CoC websites listed below were offline.

Affected sites:
4d-cities.cc.gatech.edu
bader-gottlieb.net
bioperf.org
borg.cc.gatech.edu
cikm2001.cc.gatech.edu
cmc.cc.gatech.edu
cmc.ece.gatech.edu
cmc.gatech.edu
comparch.cc.gatech.edu
comp-arch.cc.gatech.edu
comparch.ece.gatech.edu
comp-arch.ece.gatech.edu
comparch.gatech.edu
comp-arch.gatech.edu
coolcomputing.cc.gatech.edu
cpl.cc.gatech.edu
dac.cc.gatech.edu
dienst.cc.gatech.edu
etest.cc.gatech.edu
etest-dev.cc.gatech.edu
faq.cc.gatech.edu
gamma.cc.gatech.edu
goats.cc.gatech.edu
graphanalysis.org
gt2k.cc.gatech.edu
gt2k.gatech.edu
iai.cc.gatech.edu
iai.gatech.edu
icnp03.cc.gatech.edu
icnp2003.cc.gatech.edu
ipdps.cc.gatech.edu
lifelog.gatech.edu
lifewear.gatech.edu
nano.cc.gatech.edu
srvac.cc.gatech.edu
sti.cc.gatech.edu
ta-app.cc.gatech.edu
threadspace.cc.gatech.edu
tinker.cc.gatech.edu
vision.cc.gatech.edu
wearables.cc.gatech.edu
www.ai.gatech.edu
www.awarehome.gatech.edu
www.bader-gottlieb.net
www.bioperf.org
www.cc.gatech.edu
www.ccl.cc.gatech.edu
www.chmsr.gatech.edu
www.comparch.gatech.edu
www.comp-arch.gatech.edu
www.cse.gatech.edu
www.graphanalysis.org
www.gt2k.gatech.edu
www.hicomb.org
www.ic.gatech.edu
www.ice.gatech.edu
www.insects.gatech.edu
www.lifelog.gatech.edu
www.lifewear.gatech.edu
www.nano.cc.gatech.edu
www.techsym.cc.gatech.edu
zesto.cc.gatech.edu
 
 
WHEN DID IT HAPPEN?
Networking:  from approximately 10:15 AM until 11:30 AM on Tuesday, February 7, 2017.
Websites:  from approximately 10:15 AM until 12:30 PM on Tuesday, February 7, 2017
 
 
WHY DID IT HAPPEN?
All but two blades in the main KACB router went offline.
 
 
WHO WAS AFFECTED?
Networking in KACB was unavailable.  CoC websites were unreachable.  

 
WHAT DO YOU NEED TO DO?
No user action should be required.
 
 
HAS THE PROBLEM BEEN RESOLVED?
Yes.  After we rebooted the chassis and removed one of the blades, the other blades came back up.  The underlying cause is unknown, and the logs have been sent to Cisco for analysis.  Networking was restored by 11:30 AM, February 7, 2017.

The CoC webservers did not recover gracefully following the networking outage.  Websites began to come back online at 11:55 AM and were all restored by 12:30 AM, February 7, 2017.
 
 
WHO SHOULD YOU CONTACT FOR QUESTIONS?
Feel free to contact the TSO Help Desk (CCB 148, 404.894.7065, helpdesk@cc.gatech.edu).