US Patent 7586856 Technical enhancements to STP (IEEE 802.1D) implementation

Patent 7586856 was granted and assigned to Foundry Networks on September, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Foundry Networks

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75868560

Patent Inventor Names

Benny J. Thottakkara0

Rajiv Ramanathan0

Date of Patent

September 8, 2009

Patent Application Number

103943440

Date Filed

March 20, 2003

Patent Primary Examiner

‌

Jason E Mattis

Patent abstract

An embodiment includes a method of minimizing the delay in convergence time for a complex STP topology following a topology change in the network system in the spanning tree protocol (STP) standard, including: receiving, by a root port of a first bridge, a data message that includes identification of a current root bridge and a priority value of the current root bridge; receiving, by a second port of the first bridge, a second data message from a second bridge; and if a message age timer of the first bridge has less than a limiting message age time value remaining before expiry, then blocking a reply, by the second port of the first bridge, to the second data message from the second bridge.