Customer has reported that they are observing NH failure related logs on their router.
%PFE-3: fpc2 PFE_ERROR_NOT_FOUND: NH: Failed to find nh (290784) for deletion
%PFE-3: fpc2 PFE_ERROR_NOT_FOUND: NH: Failed to find nh (290785) for deletion
%PFE-3: fpc2 PFE_ERROR_NOT_FOUND: NH: Failed to find nh (315977) for deletion
%PFE-3: fpc2 PFE_ERROR_NOT_FOUND: NH: Failed to find nh (315978) for deletion
FPC crash is observed due to Failed NH leak and following logs will be seen post LSP change
when we have EVPN ELAN over SRv6 is enabled or evpn signaling/Srv6 services is used and whenever there is a route churn due to interface flaps, LSP flaps, LSP path down/LSP change path.
ELAN over SRv6 is not being cleaned up correctly consequently causes JNH leak leading to fpc crash.
family evpn {
signaling {
advertise-srv6-service;
accept-srv6-service;
}
Reported issue is fixed through already existing PR shared below:
PR1796406- Incomplete Clean up of multicast check with ELAN over SRv6.
junos:23.4R1-S1 junos:23.4R2 junos:24.1R1 junos:24.1R2 junos:24.2R1