Fabric Shortest Path First

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Fabric Shortest Path First (FSPF) is a routing protocol used in Fibre Channel networks. It calculates the best path between switches, establishes routes across the fabric and calculates alternate routes in event of a failure or topology change. FSPF can guarantee in-sequence delivery of frames, even if the routing topology has changed during a failure, by enforcing a 'hold down' time before a new path is activated.

FSPF was created by Brocade Communications Systems in collaboration with Gadzoox, McData, Ancor, and Vixel; it was submitted as an ANSI standard.[1] Introduced around the year 2000, the protocol is similar in conception to the Open Shortest Path First used in IP networks.[1] FSPF has been adopted as the industry standard for routing between Fibre Channel switches within a fabric.

A MIB for FSPF was published as RFC 4626.


  1. ^ a b IDG Network World Inc (26 June 2000). Network World. IDG Network World Inc. pp. 10–. ISSN 0887-7661.