GLBP

Gateway Load Balancing Protocol

  • Cisco proprietary.

  • Load balances among multiple routers within a single subnet.

  • An AVG (Active Virtual Gateway) is elected.

  • Up to four AVFs (Active Virtual Forwarders) are assigned by the AVG (the AVG itself can be an AVF, too).

  • Each AVF acts as the default gateway for a portion of the hosts in the subnet.

  • Multicast IPv4 address: 224.0.0.102

  • Virtual MAC address: 0007.b400.XXYY (XX = GLBP group number, YY = AVF number).

PreviousVRRPNextComparing FHRPs

Last updated