RSVP authentication fail counter is increasing even there is no issue on RSVP session and RSVP auth is enabled on interface:
router> show rsvp interface et-0/1/0.0 detail
et-0/1/0.0 Index 80, State Ena/Up
Authentication, Aggregate, Reliable, LinkProtection
HelloInterval 9(second)
Address 10.101.21.188
ActiveResv 11, PreemptionCnt 0, MaxResvTh 0bps, 0%
Update threshold 10.000%, UpdateThresholdValue 8Gbps
Subscription 80%, StaticBW 100Gbps, AvailableBW 80Gbps, Actual 80%
ReservedBW [0] 0bps[1] 0bps[2] 0bps[3] 0bps[4] 0bps[5] 0bps[6] 0bps[7] 0bps
Event Count
authentication fail 456 <<<<
set groups core-rsvp-interface protocols rsvp interface <*> authentication-key "xxxxxx"
set groups core-rsvp-interface protocols rsvp interface <*> subscription 80
set groups core-rsvp-interface protocols rsvp interface <*> link-protection
Event Count
This is expected where RSVP link/node protection is enabled and not all RSVP interfaces are enabled RSVP auth.
With enabled RSVP link/node protection, the RSVP Hello remote/extension packet to detect when a neighboring node is not reachable.
Please refer RFC 3209 RSVP Hello extension.
To authenticate packets between remote neighbours, then global rsvp authentication key can be configured.