Hi Folks,
This will help us with some insight on the observation,
Logs/Traceoptions:
set protocols vrrp traceoptions file vrrp files 10 size 50m
set protocols vrrp traceoptions flag general
set protocols vrrp traceoptions flag packets
set protocols vrrp traceoptions flag state
Also, do a TCPdump on the interface connecting between them and look for vrrp packets from peer on the both sides,
Also, look for extensive command for brief idea on PDU;s sent/received,
root@Backup> show vrrp extensive
Interface: fe-0/0/0.0, Interface index :72, Groups: 1, Active :1
Interface VRRP PDU statistics
Advertisement sent :0
Advertisement received :8890
Packets received :8890
No group match received :0
Interface VRRP PDU error statistics
Invalid IPAH next type received :0
Invalid VRRP TTL value received :0
Invalid VRRP version received :0
Invalid VRRP PDU type received :0
Invalid VRRP authentication type received:0
Invalid VRRP IP count received :0
Invalid VRRP checksum received :0