SWITCHlan Trouble Tickets

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Ticket 20211102_1

Ticket Number: 20211102_1Ticket State: CLOSED
Ticket Opened: 2021-11-02 21:15Ticket Closed: 2021-11-04 11:44
Ticket Description: PoP Martigny offline

Problem Description:

Due to multiple simultaneous faults, the PoP in Martigny is currently offline.
-failed amplifier in Lausanne
-suspected broken fiber between Martigny and Sion


From 2021-11-02 19:24 until 2021-11-03 11:58
Impact: no more redundancy
Service: network access
Sites: VSNET

From 2021-11-02 19:24 until 2021-11-03 11:58
Impact: Total loss of connectivity
Service: P2P/OPN
Sites: EPFL-Martigny, RERO-BRIG-my2-br1

From 2021-11-02 19:24 until 2021-11-03 11:58
Impact: no more redundancy
Service: P2P/OPN
Sites: EPFL-Sion, UNIL-IUKB-ls3-si2


2021-11-04 11:44
SBB informed about the RFO: they found rodents in their main fiber rack in Sion, eating a couple of patch cables. SBB made sure they will never do this again...

2021-11-03 15:45
all links up again; no RFO known at this time

2021-11-03 15:00
fiber fault found near EPFL Sion site; responsible provider has been contacted

2021-11-03 12:07
[added impact end timestamps]

2021-11-03 12:01
After replacing a defective optical amplifier at EPFL, our router in Martigny is connected to SWITCHlan again, at least from one side. Work is continuing to locate the issue on the Martigny–Sion side.

2021-11-03 11:38
Another SWITCH engineer has arrived in Sion to perform some measurements to locate what looks like a fiber fault.

2021-11-03 11:19
SWITCH engineers have arrived at EPFL in Lausanne to perform some measurements and replace an optical amplifier.

All times are in local Swiss time CET / CEST.
For all questions about this ticket, please send mail to noc@switch.ch
or call +41 44 268 15 30.