To get better visibility on issues like T228823.
On the CLI this info can be seen with:
asw2-a-eqiad> show virtual-chassis vc-port statistics extensive
On SNMP this is exposed via a dedicated MIB:
The ideal would be to implement that in LibreNMS to have graphing and alerting, on both link usage and errors.
Quick workaround would be to extend the check_vcp.py Icinga check to also look at the errors counters and alert if any is increasing.