Forwarding loop prevention apparatus and methods

Details Forwarding loop prevention apparatus and methods Forwarding loop prevention apparatus and methods

2007-10-31

2010-12-28

Phunkulh, Bob A (Department: 2477)

Multiplex communications

Channel assignment techniques

Messages addressed to multiple destinations

C370S400000, C398S066000

Reexamination Certificate

active

07860121

ABSTRACT:
Forwarding loop prevention apparatus and methods are provided. After a communication traffic block such as a packet is received, a determination is made as to whether the packet is to be broadcasted to a number of communication devices. If the packet is to be broadcasted, the packet is modified to include an indication that the packet is reflected, and the packet is broadcasted. A device that receives the broadcasted packet determines whether it is reflected and whether the identifier is associated with the device. If the packet is reflected and the identifier is associated with the device, the device discards the packet. Otherwise it forwards the packet. Forwarding loops may instead be avoided without modifying packets, based on an amount of time elapsed between sending and receiving a packet.

REFERENCES:
patent: 6023467 (2000-02-01), Abdelhamid et al.
patent: 7272137 (2007-09-01), Unitt et al.
patent: 7551573 (2009-06-01), Baird et al.
patent: 7684403 (2010-03-01), Kim et al.
patent: 2004/0240466 (2004-12-01), Unitt et al.
patent: 2005/0074239 (2005-04-01), Pohjola et al.
patent: 2006/0221972 (2006-10-01), Bhargava et al.
patent: 2006/0222012 (2006-10-01), Bhargava et al.
patent: 2006/0268751 (2006-11-01), Baird et al.
patent: 2007/0047959 (2007-03-01), Thomas et al.
patent: 2008/0198857 (2008-08-01), Kim et al.
“G-PON Common Technical Specification,” Feb. 8, 2006.
ITU-T G.984.3, “Gigabit-capable Passive Optical Networks (G-PON): Transmission convergence layer specification,” Feb. 2004.
IEEE Std 802.3, “Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications,” Section 65.1, pp. 299-303; Dec. 9, 2005.
IEEE Std 802.1D, “Media Access Control (MAC) Bridges,” Section 7, pp. 29-56; Jun. 9, 2004.
International Search Report for PCT/US2008/012308.
Written Opinion for PCT/US2008/012308.

Affiliated with

Also associated with

Rating

Forwarding loop prevention apparatus and methods does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Forwarding loop prevention apparatus and methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forwarding loop prevention apparatus and methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4211664