Break in Kumpula-Otaniemi light-paths at 2016-03-09 14:22 - 2016-03-10 02:20

2016-03-09 14:22 to 2016-03-10 02:20
11h 58min
Affected services: 
Network connections running over Kumpula-Otaniemi light-paths.

The following services are affected by a broken light-path in between Kumpula and Otaniemi:

  • HIIT's network connections in Otaniemi region, including Open Innovation House (OIH), T- and TUAS- building.
  • Testbed.

The schedule to fix the broken fibre is not available.

To remediate the situation and to gain redundancy to production network connections, all other VLANs except the testbed will be relocated from the Kumpula-Otaniemi light-path to MPLS tunnel at at 2016-03-10. The MPLS tunnel will be ran from University of Helsinki to Aalto university and it will carry the traffic over IP using FUNET links of both universities. FUNET links are redundant, a.k.a. there are two (2) of them in each university so breakage of one link will not cause a break in connections.

Update at 2016-03-10 03:10 by Pekka Tonteri: Light-paths seem to function again and the break is over. :) The production network will see some downtime in the morning due to MPLS configuration. That break should, however, be quite short. A separate break report will be issued due to MPLS configuration.

Update at 2016-03-10 03:23 by Pekka Tonteri: A break report for MPLS configuration has been created.


Last updated on 10 Mar 2016 by Pekka Tonteri - Page created on 9 Mar 2016 by Pekka Tonteri