System, device, and method for detecting and recovering from failures in a multicast communication system
AssigneeNortel Networks Limited
InventorYunzhou Li
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Abstract
A system, device, and method for detecting and recovering from failures in a multicast communication system involves joining a multicast group over a primary interface, monitoring for multicast group information received over the primary interface, and determining that there is a multicast group failure if no multicast group information is received over the primary interface for a predetermined amount of time. Recovering from such a failure typically involves joining the multicast group over a backup interface in order to continue receiving multicast group information over the backup interface. A relay/proxy device may join the multicast group on behalf of a multicast host and forward multicast group information to the multicast host.
Claims64
A method for detecting a failure in a multicast communication network, the method comprising:
- joining a multicast group over a primary interface;
- and
- determining that no multicast group information is received over the primary interface for a predetermined amount of time.
An apparatus for detecting a failure in a multicast communication network, the apparatus comprising:
- a primary interface for coupling to a first multicast network;
- and
- proxy logic operably coupled to join a multicast group over the primary interface and determine that no multicast group information is received over the primary interface for a predetermined amount of time.
A computer program for controlling a computer system to detect a failure in a multicast communication network, the computer program comprising:
- proxy logic programmed to join a multicast group over a primary interface and determine that no multicast group information is received over the primary interface for a predetermined amount of time.
A multicast communication system comprising a networking device coupled to a multicast communication network through a primary interface, wherein the multicast communication network supports a multicast group, and wherein the networking device joins the multicast group over the primary interface and determines that the multicast group failed over the primary interface if no multicast group information is received over the primary interface for a predetermined amount of time.
Dependencies are inferred from the claim text.