All - I've received the following two items from our ISP. Note that there are (at least) two cuts in the fiber.
--snip-- IP NOC reports that at the first fiber cut location, the anticipated slack in the fiber span located in the secondary manhole for the south end of the span is unable to be used. As such, crews are making preparations to pull in approximately 3,000 feet of new fiber into a viable fiber duct. Preparations to the fiber span at the north end successfully remain ongoing at this time. Field Operations have provided a tentative estimated time to restore (ETTR) of 0200 GMT on April 22, 2020. At the secondary fiber cut location, to expedite service restoration fiber crews will be performing a single splice point and splicing a temporary hand hold into service. Splicing efforts are anticipated to commence at 19:30 GMT. --snip-- and this just arrived right as I was preparing to send the above: --snip-- The network is engineered to withstand a single fault in the backbone. Today, there were multiple fiber cuts that created this unique situation resulting in abnormal loss and latency inside the backbone of the network. The network rerouted traffic as designed around the cuts and additional traffic engineering has taken place to mitigate latency observed on IP services. Preparations are underway and splicing activities are expected to begin in the next 30-minutes on one of the damaged cables. As these fiber cuts are repaired continued improvements will be seen as traffic shifts to the most optimal path per design. These fiber cuts have been escalated to the highest levels and all essential repair teams are engaged and focused on the most expeditious means of repair. --snip-- Thank you for your patience. Glen -- Glen Barney IT Director AMS (IETF Secretariat) _______________________________________________ IETF-Announce mailing list IETF-Announce@ietf.org https://www.ietf.org/mailman/listinfo/ietf-announce
