Displaying MLD Statistics for a VLAN
To display MLD statistics for a VLAN, use the mld-stats-show command:
Virtual Router Redundancy Protocol (VRRP) is an election protocol that enables virtual routing functions for a master or standby routing infrastructure for a given IP address. A virtual router is defined by a virtual router identifier (VRID) and a virtual router IP address (VIP). The scope of the virtual routers is restricted to a single VLAN.
VRRP provides information on the state of a virtual router, not the routes processed and exchanged by the router. It increases the availability and reliability of routing paths by automatic gateway selections on an IP subnetwork.
VRRP provides rapid transition from master to standby and from standby to master. The master router sends advertisements every second. If the master VRRP advertisements are not received within a window of time, three (3) seconds, then the standby virtual router becomes the master virtual router and begins performing routing for the virtual router. If the master router becomes active again, it can become the master again or allow the standby to continue as the master router. The role depends on the value assigned to VRRP priority.
vRouter interfaces now support both IPv4 and IPv6 addresses.
Configuring VRRP Priority
The Priority is a value used by the VRRP router for master election. The valid priority range for a virtual router is from 1 to 254. 1 is the lowest priority and 254 is the highest priority. The default value for standby routers is 100. Higher values indicate higher priority for the virtual router.