15.2.2 Flow of VRRP configuration

(1) Set IP interfaces in advance.

Assign IP addresses to VLANs. The IP addresses of VLANs must belong to the same family of IP addresses as the IP address to be assigned to the virtual router.

After you assign an IPv6 address to a VLAN for the first time, you need to execute the ipv6 enable command to enable the assigned IPv6 address.

(2) Sets IP addressing to the virtual router.

When the IP address assigned to an IP interface is the same as the IP address configured for a virtual router, the virtual router containing the IP interface is the IP address owner. The priority of this virtual router is fixed at 255.

When you configure an IPv6 address for a virtual router, you can only specify a link-local unicast address according to VRRP specifications. However, with the Switch, you can also specify a global address (including a site-local address).

(3) Sets the priority of a virtual router.

Assign different priorities to the virtual routers with the same virtual router identifier other than the virtual router of the IP address owner.

(4) Sets ADVERTISEMENT packet-sending interval.

If the network load is high and backup routers often lose advertisement packets, specify a longer sending interval for advertisement packets on the master and backup virtual routers.

(5) Configure fault monitoring interfaces and VRRP polling.

Configure the failure monitoring interfaces and VRRP polling on virtual routers as necessary so that virtual routers will not be switched over due to failures other than failures on the interfaces on which a virtual router is configured.