SWITCHlan Trouble Tickets

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Ticket 20140311_2

Ticket Number: 20140311_2Ticket State: CLOSED
Ticket Opened: 2014-03-11 20:43Ticket Closed: 2014-03-24 13:25
Ticket Description: Major network problem in Lausanne area

Problem Description:

Our routers in Lausanne at EPFL and UniL are not reachable.
All routers at other sites in Lausanne - which are connected to these routers - are affected as well
The reason and all implications are not known yet.

Affected:

From 2014-03-11 19:45 until 2014-03-11 21:35
Impact: Total loss of connectivity
Service: network access
Sites: CHUV, EHL, EPFL, IMD, UNIL

Actions:


2014-03-12 17:44
The outage was caused by a storm of CDP packets that caused the CPU load of the router to raise to 100%. This resulted in a total loss of connectivity for all customers connected to these two routers because of flapping routing protocols. We sincerely have to apologize for this outage. We did send you detailed information by mail directly. We do close this ticket now as the problem covered is resolved.

2014-03-11 22:05
The problem could be found.
Everything seems to be back to normal.


For all questions about this ticket, please send mail to noc@switch.ch
or call +41 44 268 15 30.