SWITCHlan Trouble Tickets

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Ticket 20111105_1

Ticket Number: 20111105_1Ticket State: CLOSED
Ticket Opened: 2011-11-05 02:05Ticket Closed: 2011-11-05 12:30
Ticket Description: Excessive CPU load on router swiMA2 in Manno

Problem Description:

The router swiMA2 in Manno is responding slowly due to excessive CPU load since about 1 am on Nov 5, 2011. The reason is unknown at this moment. While response to control traffic is erratic, we expect normal traffic to be forwarded with little impact.

Affected:

From 2011-11-05 01:00 until 2011-11-05 12:00
Impact: no impact
Service: network access
Sites: CSCS, TI-EDU


Actions:


2011-11-05 13:37
The cause was tracked down to a malfunctioning ERSPAN (remote port-mirroring) session internal to SWITCH. The CPU load on swiMA2 returned to normal after removing the faulty sesson.


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