SWITCHlan Trouble Tickets

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Ticket 20230413_1

Ticket Number: 20230413_1Ticket State: CLOSED
Ticket Opened: 2023-04-13 08:34Ticket Closed: 2023-04-13 15:48
Ticket Description: Input errors on IP access interface in Bulle

Problem Description:

Since last Saturday morning, we have observed input errors (CRC failures) on our router swiBUL2, interface TenGigE0/0/1/0. This is the IP access link of Glion (Bulle campus). The error rate is around 0.5% for packets received by SWITCHlan from Glion.


From 2023-04-08 07:00 until 2023-04-13 15:37
Impact: Partial loss of connectivity
Service: network access
Sites: Sommet

Connectivity is still present, but due to the high error rate, upload rates from the campus will be lower than normal, especially to far-away destinations.


2023-04-13 15:37
SWITCHlan engineer on site at 15:25.
Our 10G-XFP-LR seems to have been ok, since still CRC drops after replacement.
Faulty transceiver has been replaced on customer end and no more CRC errors detected.
All services restored.

2023-04-13 13:24
A SWITCHlan engineer has been dispatched to Bulle with replacement transceivers and cables. They will arrive on site around 15:30. Expect one or several short IP access interruptions as replacements are deployed.

2023-04-13 10:15
Offered to send the customer a new 10G-XFP-LR transceiver to replace the one in our router's access interface.

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.