Patent · US Active

Synchronizing out-of-sync elements in a distributed fibre channel forwarder

US9426098B2 · kind B2 · utility

0Cited by

4References

9Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Henry J. May · Mantorville, US
Christoph Raisch · Gerlingen, DE
Stefan Roscher · Stuttgart, DE
Daniel Sentler · Passau, DE
Bharath B. Somayaji · Bengaluru, IN
Sudheer R. Yelanduru · Bengaluru, IN

Key dates

Filing date	Apr 29, 2014
Grant date	Aug 23, 2016
Priority date	—
Expiry date	Jul 22, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L49/557
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Techniques are provided for synchronizing, in a distributed Fiber Channel fabric or a distributed FCoE fabric in which FC frames are encapsulated in Ethernet frames, a controlling FCoE forwarder (cFCF) with the FCoE data-plane forwarder (FDF). The operation includes entering a recovery mode at the FDF. The FDF is modified based on a route distribution message provided by the cFCF which includes fabric-provided MAC addresses (FPMAs). The FDF notifies the cFCF of differences between the FPMAs supplied by the route distribution message with the FPMAs known by the FDF. The FDF leaves the recovery mode and sends an acknowledgement to the cFCF.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.