Technical enhancements to STP (IEEE 802.1D) implementation

Details Technical enhancements to STP (IEEE 802.1D) implementation Technical enhancements to STP (IEEE 802.1D) implementation

2011-06-28

2011-06-28

Mattis, Jason E (Department: 2461)

Multiplex communications

Network configuration determination

Using a particular learning algorithm or technique

C370S244000, C370S255000

Reexamination Certificate

active

07969915

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.

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IEEE Standard for Local and Metropolitan Area Networks—Common Specification, Part 3: Media Access Control (MAC) Bridges (The Institute of Electrical and Electronics Engineers, Inc., New York, NY 1009).

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