Symptom
QSFP is not working between these two routers NCS-57C3-MOD-SYS, N540-ACC-SYS)
- here you are the outputs for both routers:
RP/0/RP0/CPU0:ncs1#run
Mon Dec 19 19:21:29.450 EET
[xr-vm_node0_RP0_CPU0:~]$cat /etc/build-info.txt
### XR Information
Workspace = /auto/srcarchive13/prod/7.8.1/ncs5500/ws
Lineup = r78x.lu%EFR-00000441251
XR version = 7.8.1
RP/0/RP0/CPU0:ncs2#run
Mon Dec 19 19:24:30.901 EET
[xr-vm_node0_RP0_CPU0:~]$cat /etc/build-info.txt
### XR Information
Workspace = /auto/srcarchive13/prod/7.8.1/ncs540/ws
Lineup = r78x.lu%EFR-00000441251
XR version = 7.8.1
Conditions
- software version in all NCS routers is 7.8.1
- All routers are running 7.8.1.
- Interface doesn't come up. Optical Rx & Tx power is good. Same symptom for all four links
Workaround
Tried another optic between these two devices (QSFP-100G-DR-S) and the links came up
Tried QSFP-100G-ZR4-S the link came up as well.
Further Problem Description
PROD SMU will be available
