Determining the presence of IP multicast routers

Details Determining the presence of IP multicast routers Determining the presence of IP multicast routers

2005-11-01

2010-02-09

Ngo, Ricky (Department: 2464)

Multiplex communications

Network configuration determination

Using a particular learning algorithm or technique

C370S400000

Reexamination Certificate

active

07660268

ABSTRACT:
A method for determining the presence of the multicast routers using existing protocols is disclosed. The method includes setting a time interval between a first set of query messages to each of a plurality of routers to a number greater than a querier timeout period used by the routers. The querier timeout period transitions each of the routers into a querier. The presence of each of the routers is revealed by sending a second set of query messages. Membership report messages are then sent to the routers.

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William Fenner, Nov. 1997, The Internet Society, RFC 236, p. 1-24.

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