Hot Standby Routing Protocol

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Hot Standby Routing Protocol

(protocol)
(HSRP) A CISCO standard, defined in RFC 2281, that calls for a mirrored router in passive mode to send hello packets, wait for a lead router to die and, without dropping a packet, take over from that router.

Note: "standby", not "swappable" (and certainly not "swapable").
References in periodicals archive ?
Network service redundancy is achieved through ATM Simple Server Redundancy Protocol (SSRP), Hot Standby Router Protocol (HSRP) and support for Spanning-Tree Protocol on a per-VLAN basis.
Frontier GlobalCenter, the data and Internet arm of Frontier Communications, today announced the availability of Cisco Systems' Hot Standby Router Protocol (HSRP) to provide greater levels of connectivity redundancy for businesses hosted within Frontier GlobalCenter's Cisco powered Media Distribution Centers (MDCs).
Additionally, it supports the Hot Standby Router Protocol (HSRP) for network resiliency and failsafe operation.