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Ticket 20080725_1

Ticket Number: 20080725_1Ticket State: CLOSED
Ticket Opened: 2008-07-25 14:03Ticket Closed: 2008-09-22 14:33
Ticket Description: Scheduled Software Upgrade BA2, BE2, EL2, FR1, LS2, ZH2
Scheduled Starttime: Scheduled Endtime:

Problem Description:

We will upgrade the software images on our routers swiBA2, swiBE2, swiEL2, swiFR1, swiLS2 and swiZH2 on Monday, July 28th 2008 between 6:00 and 8:00. The outage of a router during a software upgrade is about 15 minutes per unit.
Redundant connections will still have access over their backup paths, single homed entities will lose Internet access for about 15 minutes within the time window mentioned above.

Affected:

From 2008-07-28 06:21 until 2008-07-28 06:27
Impact: no more redundancy
Sites/Services: EPFL, IMD, UNIL

From 2008-07-28 07:20 until 2008-07-28 07:26
Impact: no more redundancy
Sites/Services: EPFL, IMD, UNIL

From 2008-07-28 07:10 until 2008-07-28 07:16
Impact: Total loss of connectivity
Sites/Services: UZH, ZHWIN-PHZH


From 2008-07-28 06:30 until 2008-07-28 06:55
Impact: no more redundancy
Sites/Services: UNIFR


From 2008-07-28 06:03 until 2008-07-28 06:09
Impact: no more redundancy
Sites/Services: UNIBAS


From 2008-07-28 06:03 until 2008-07-28 06:09
Impact: no more redundancy
Sites/Services: ETHZ (link to BSSE)


From 2008-07-28 06:03 until 2008-07-28 06:09
Impact: Total loss of connectivity
Sites/Services: BELWUE


From 2008-07-28 06:00 until 2008-07-28 08:00
Impact: no more redundancy
Sites/Services: UNIBE, BFH


Actions:


2008-07-28 07:26
Router swiLS2 is back online. Upgrade successful.

2008-07-28 07:20
Router swiLS2 is shutdown for Softwareupgrade.

2008-07-28 07:16
Router swiZH2 is back online. Upgrade successful.

2008-07-28 07:10
Router swiZH2 is shutdown for Softwareupgrade.

2008-07-28 06:55
Router swiFR1 is back online. Upgrade successful after all.

2008-07-28 06:30
Router swiFR1 is shutdown for Softwareupgrade. After the reload the router loses its configuration due to a bug in SRA6. Configuration is restored manually.

2008-07-28 06:27
Router swiEL2 is back online. Upgrade successful.

2008-07-28 06:21
Router swiEL2 is shutdown for Softwareupgrade.

2008-07-28 06:15
Router swiBE2: primary BGP session to UniBE shutdown. UniBE is unreachable, it seems the backup connection is not working. Upgrade aborted, trying later. Due to redundancy failure this upgrade is postboned.

2008-07-28 06:09
Router swiBA2 is back online. Upgrade successful.

2008-07-28 06:03
Router swiBA2 is shutdown for Softwareupgrade.


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