When i plug ethernet cable to backup router, vrrp interface doesn’t change state to backup (from RM to B).
After n’th plug out and in ehernet cable finally vrrp interface change state to backup and after that everything works properly (when turn off master router interface change state to master after turn on it - to backup state).
In wireshark i see multicast vrrp advertisement packets from master router on switch port where backup router connected is.
Have you any ideas where the problem is ?
–master router–
Virtual Router Redundancy Protocol
Version 2, Packet type 1 (Advertisement)
0010 … = VRRP protocol version: 2
… 0001 = VRRP packet type: Advertisement (1)
Virtual Rtr ID: 100
Priority: 255 (This VRRP router owns the virtual router’s IP address(es))
Addr Count: 1
Auth Type: No Authentication (0)
Adver Int: 1
Checksum: 0xd525 [correct]
IP Address: 10.0.0.1
–backup router—
configuration the same, only Priority set to 100 (default for backup)