SUNETTICKET-8048, Unscheduled, Updated, Link down HIM - LBA - Sunet-fail

7 Aug 2022

Ticket Number  : SUNETTICKET-8048
Ticket Type    : Unscheduled
Ticket Status  : Open
Ticket Summary : Link down HIM - LBA
Ticket Scope   : 

Ticket Opened  : 20220804 17:42 UTC
Ticket Closed  : 

Problem Start  : 20220804 17:32 UTC
Problem End    : 

Affected organisations:

      * NORDUnet, SUNET, ORU, Netnod
        ----

Description:

      * Fiber break between Himmeta and Ãrebro
        ----

Impact:

      * Following services were affected:
        SU-S002115: SUNET Backbone lba-r1 - fsn2-r1	
        SU-S002325: SUNET Backbone oru-r2 - fsn2-r1	
        SU-S003060: IP to ORU2
        SU-S003658: Wave for Netnod "dwdm1-stc.sth.netnod.se" to
        "dwdm1-ixn.cph.netnod.se"
        SU-S003693: Wave for Netnod "dwdm1-stc.sth.netnod.se" to
        "HMG9"
        SU-S003713: AW Netnod STC - LLA1
        SU-S003818: AW Netnod STHB - MCEN1
        SU-S003676: Wave Nordunet HMG9 - BAL nordunet no-hmg9 <->
        dk-bal2
        ----

Update:

      * 20220804 17:56 UTC
        Escalated to provider
        ----

      * 20220804 19:55 UTC
        Provider confirms fiber break. Measurements ongoing to
        locate fault location
        ----

      * 20220804 21:40 UTC
        Due to heavy thunderstorms no access to the fiber is
        allowed, it's colocated with power cables. When weather
        improves repair work can start. 
        ----

      * 20220805 8:36 UTC
        The troubleshooting will start soon. No ETR yet.
        ----

      * 20220805 12:13 UTC
        Technicians have now made a measurement from one side of the
        connection and are working on the other side right now. They
        also discuss temporary solutions for how they can achieve a
        temporary solution to the problem so that the impact is as
        mild as possible.
        ----

      * 20220805 14:57 UTC
        Update from provider:
        Our technicians, together with contact persons, work to come
        up with a flexible temporary solution that is both reliable
        and good for all parties. Our technicians will continue to
        work through the weekend on this. For that reason, we do not
        have an estimated completion time to give out unfortunately.

        We will continue to update you regularly and are grateful
        for your patience.
        ----

      * 20220805 22:27 UTC
        Update from provider:
        Sub-provider is working on setting up a temporary fix while
        they are conducting repairs on the damaged power pylon. No
        ETR, but they are hopeful it will be no later than Friday,
        20220812.
        ----

      * 20220806 19:34 UTC
        The start of a temporary solution has been pushed back until
        Monday, 8/8, due to difficult terrain. There is also lots of
        broken equipment that needs to be removed from the site.
        ----

      * 20220807 18:35 UTC
        Provider is positive that they can start working on an
        emergency bypass tomorrow, Monday.
        ----

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