Prevention of frame duplication in interconnected ring networks

Multiplex communications – Fault recovery – Bypass an inoperative station

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C370S389000, C370S404000

Reexamination Certificate

active

07876673

ABSTRACT:
A method for communication includes, in a communication network that includes multiple ring nodes arranged in at least first and second ring networks that are connected by two or more of the ring nodes serving as interconnect nodes, accepting at the two or more interconnect nodes respective copies of a data packet, which is sent from a source user node connected to the first ring network.An attribute is extracted from the respective copies of the data packet at each of the interconnect nodes, and a predefined mapping function is applied to the extracted attribute so as to select a single interconnect node for forwarding the data packet to the second ring network. A single copy of the data packet is forwarded to the second ring network only from the selected interconnect node, while refraining from forwarding other copies from the other interconnect nodes.

REFERENCES:
patent: 6807172 (2004-10-01), Levenson et al.
patent: 6829651 (2004-12-01), Bass et al.
patent: 6963575 (2005-11-01), Sistanizadeh et al.
patent: 7009974 (2006-03-01), Fotedar
patent: 7619987 (2009-11-01), Mitsumori
patent: 2004/0165525 (2004-08-01), Burak
patent: 2006/0059325 (2006-03-01), Milne et al.
patent: 2006/0109802 (2006-05-01), Zelig et al.
patent: 2008/0107125 (2008-05-01), Bruckman
The IEEE Standard 802.17, entitled: “Part 17: Resilient Packet Ring (RPR) Access Method & Physical Layer Specifications”, 2007.
Ram, “Protected Inter-Ring Connection”, Proceedings of the IEEE 802.17 RPR Working Group interim Working Srsssion, Jan. 2008.
Marc Lasserre, et al., “Virtual Private LAN Services OVer MPLS”, Feb. 2005.
K. Kompella, et al., “Virtual Private LAN Service”, Dec. 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Prevention of frame duplication in interconnected ring networks does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Prevention of frame duplication in interconnected ring networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prevention of frame duplication in interconnected ring networks will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2690992

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.