GLBP supports load balancing methods:
Round-robin: Each ARP request gets the next AVF MAC in sequence. Simple but ignores traffic volume.
Weighted: You assign weights to each router. Higher weight means more traffic. Use when routers have different capacities.
Host-dependent: Each client always gets the same AVF MAC based on its own MAC address. Useful when you need consistent routing for stateful connections.
Round-robin is the default and works well when routers are identical.