Analysis:
Ensure that at least one router in the backup group is active.
If it is possible to ping the virtual IP address from other network devices, the causes
may be the VRRP status changing needs some time (although brief). Execute the show
vrrp command to check the VRRP information and confirm this.
If the local network device is in the same network segment of the virtual router, check
whether ARP table of the local network device contains the APP entry for the IP virtual
address. If no, check the network lines.
If the local network device is not in the same network segment of the virtual router,
make sure the local network device has a router to the virtual IP address.
Symptom: multiple master devices in the same VRRP backup group
Analysis:
In the same VRRP backup group, the Ethernet interfaces of those routers are in
different VRRP group authentication modes.
In the same VRRP backup group, the Ethernet interfaces of those routers are in the
plaintext password VRRP group authentication mode, but the authentication strings are
not the same.
In the same VRRP backup group, the cables the Ethernet interfaces of some routers
may be disconnected, since the routers fail to detect that.
In the same VRRP backup group, the VRRP advertisement interval is inconsistent and
the timer learning function is not configured.
In the same VRRP backup group, the virtual IP for the routers are not the same.
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