Symptom
Link between the punt switch and NPU intermittently keeps flapping. This cause NPU loopback Test fails and ARP do not get resolve.
Conditions
This issue observed post LC boot up. Not seen on run state.
Workaround
This issue seen following LC boot up, second LC reload recovers the link.
Further Problem Description
sysadmin-vm:0_RP0# show controller switch statistics location 0/LC0/LC-SW | inc NP0
23 Up 76350793 254 5 0 173 NP0
NPU loopback Test also fails when this issue occurs.
