First-hop redundancy protocol

A first hop redundancy protocol (FHRP) is a computer networking protocol which is designed to protect the default gateway used on a subnetwork by allowing two or more routers to provide backup for that address;[1][2] in the event of failure of an active router, the backup router will take over the address, usually within a few seconds. In practice, such protocols can also be used to protect other services operating on a single IP address, not just routers.

Examples of such protocols include (in approximate order of creation):

References

  1. "First Hop Redundancy Protocol (FHRP)". Cisco. Retrieved 2019-06-05.
  2. gokhankosem (2018-10-16). "First Hop Redundancy Protocols". IpCisco. Retrieved 2019-06-05.
  3. "Cisco Protocols: HSRP, VRRP, GLBP". Petri. 2012-04-11. Retrieved 2019-06-05.
  4. "Chassis Cluster Redundant Ethernet Interfaces - TechLibrary - Juniper Networks". Juniper Networks. 2019-05-30. Retrieved 2019-06-09.
  5. "HowTo Configure MAGP on Mellanox Switches". community.mellanox.com. 1 March 2020.


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