Customer observed an issue with interfaces on a VSP8404. Some ports stoped work (1/23 and 1/24) .
The LED status is that it has a local fault failure. Steady Amber color LED
They tried to resolve issue by following:
- Shut / no shut port
- Replace SFP
- Replace 8424XS slot module
- Remove configuration of MLT.
- Reboot the VSP 8404
- Upgrade to the latest version from 126.96.36.199 to 188.8.131.52
Optical values looks good.
They were not able to provide logs from time of issue.
Show tech didn't show any suspicious behavior.
Once they set the same configuration on port on another module on the same switch and moved the SFP including the fibers the port does work.