Extracted Ticket


Ticket Number  : NORDUNETTICKET-6621
Ticket Type    : Unscheduled
Ticket Status  : Closed
Ticket Summary : Link Down TUG-BAL2 & UNI-UNINETT
Ticket Scope   : Link

Ticket Opened  : 20200713 6:33 UTC
Ticket Closed  : 20200724 5:42 UTC

Problem Start  : 20200713 6:18 UTC
Problem End    : 20200723 17:18 UTC

Affected organisations:

      * NORDUnet, UNINETT
        ----

Service ID:

      * NU-S000077, NU-S000444, NU-S000682, NU-S000681, NU-S000649,
        NU-S000174, NU-S000173, NU-S000148, NU-S000379
        ----

Description:

      * The 200G core link between TUG, Stockholm and BAL2, Denmark
        as well as the 100G customer link between Uninett and
        Denmark are down.
        
        The service between UNI and USI flapped for a few seconds
        when the fiber went down.
        
        This is due to a suspected fiber break in SUNET network in
        Denmark.
        ----

Impact:

      * Reduced redundancy for affected organizations.
        ----

Update:

      * 20200713 20:43 UTC
        Wavelength diverted temporarily until fiber break is fixed.
        ----
        
      * 20200714 5:49 UTC
        Service provider confirms a fiber break in the submarine
        cable. ETA to start repairing the cable is 2020-07-15 13:00
        UTC.
        ----
        
      * 20200723 17:14 UTC
        Reverting back the wavelengths to their original path.
        ----
        
      * 20200723 17:49 UTC
        All wavelengths reverted back.
        ----
        
        
Final ticket report:

      * The 200G core link between TUG, Stockholm and BAL2, Denmark
        as well as the 100G customer link between Uninett and
        Denmark were down. The service between UNI and USI flapped
        for a few seconds when the fiber went down. This was due to
        a suspected fiber break in SUNET network in Denmark.
        ----