Multicast routing over unidirectional links

Details Multicast routing over unidirectional links Multicast routing over unidirectional links

2005-04-29

2009-08-11

Yao, Kwang B (Department: 2416)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S312000

Reexamination Certificate

active

07573888

ABSTRACT:
Various systems and methods are disclosed for performing multicast routing over unidirectional links. For example, one method involves maintaining a multicast adjacency state, which is associated with an interface that is coupled to receive messages from a network device via a unidirectional link. The multicast adjacency state identifies a network address of the network device. The method also involves sending a multicast protocol control message to the network device via a bidirectional path. The destination address of the network multicast protocol control message is the network address in the multicast adjacency state.

REFERENCES:
patent: 6182147 (2001-01-01), Farinacci
patent: 6301223 (2001-10-01), Hrastar et al.
patent: 6389453 (2002-05-01), Willis
patent: 6845091 (2005-01-01), Ogier et al.
patent: 6917983 (2005-07-01), Li
patent: 2001/0025377 (2001-09-01), Hinderks
patent: 2001/0040895 (2001-11-01), Templin
patent: 2004/0246939 (2004-12-01), Koskiahde et al.
Duros et al. “A Link-Layer Tunneling Mechanism for Unidirectional Links”, Request for Comments 3077 (Internet Version), Network Working Group, Mar. 2001, [p. 1]-[p. 25].
E. Duros, et al., Network Working Group Request for Comments 3077, “A Link-Layer Tunneling Mechanism for Unidirectional Links,” Mar. 2001, pp. 1-24, ftp://ftp.ietf.org/rfc/rfc3077.txt.
D. Estrin, et al., Network Working Group Request for Comments 2362, “Protocol Independent Multicast-Sparse Mode (PIM-SM): Protocol Specification,” Jun. 1998, pp. 1-62, ftp://ftp,isi.edu./in-notes/rfc2362.txt.
Cisco Systems, Inc., “Unidirectional Link Routing for Unicast and Multicast Environments,” Jan. 16, 2003, pp. 1-18, www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t3/igmpudlr.htm.
Topology Dissemination Based on Reverse Path Forwarding (TBRPF), RFC 3684, SRI International, Feb. 2004, pp. 19-20.

Affiliated with

Also associated with

Rating

Multicast routing over unidirectional links does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multicast routing over unidirectional links, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multicast routing over unidirectional links will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4093832