Methods and apparatus for updating subsource addressing multicast routing records in a communications network
First Claim
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1. A method of facilitating subscription among at least two nodes in a distributed network, said method comprising the steps of:
- designating one of the nodes as a publisher node;
designating one of the nodes as a subscriber node; and
recording a path between the subscriber node and the publisher node, the path comprising at least one link between the subscriber node and the publisher node;
said recording step comprising the step of recording each distinct link in the path between the subscriber node and the publisher node;
said recording step comprising recording each node in the path between the subscriber node and the publisher node, one node at a time;
wherein a type of each node in the path is ascertained;
wherein the nodes belong to a distributed multicast network; and
wherein said step of recording a path comprises ascertaining whether any intervening node is present in the path between the subscriber node and the publisher node.
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Abstract
Methods and arrangements for facilitating subscription among at least two nodes in a distributed network, involving the designation of one of the nodes as a publisher node, the designation of one of the nodes as a subscriber node, and the recordation of a path between the subscriber node and the publisher node. The path includes at least one link between the subscriber node and the publisher node, and the recordation involves recording each distinct link in the path between the subscriber node and the publisher node.
39 Citations
13 Claims
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1. A method of facilitating subscription among at least two nodes in a distributed network, said method comprising the steps of:
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designating one of the nodes as a publisher node; designating one of the nodes as a subscriber node; and recording a path between the subscriber node and the publisher node, the path comprising at least one link between the subscriber node and the publisher node; said recording step comprising the step of recording each distinct link in the path between the subscriber node and the publisher node; said recording step comprising recording each node in the path between the subscriber node and the publisher node, one node at a time; wherein a type of each node in the path is ascertained; wherein the nodes belong to a distributed multicast network; and wherein said step of recording a path comprises ascertaining whether any intervening node is present in the path between the subscriber node and the publisher node. - View Dependent Claims (2, 3, 4)
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5. A non-transitory program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform steps for facilitating subscription among nodes in a distributed network, said steps comprising:
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designating one of the nodes as a publisher node; designating one of the nodes as a subscriber node; and recording a path between the subscriber node and the publisher node, the path comprising at least one link between the subscriber node and the publisher node; said recording step comprising the step of recording each distinct link in the path between the subscriber node and the publisher node; said recording step comprising recording each node in the path between the subscriber node and the publisher node, one node at a time; wherein a type of each node in the path is ascertained; wherein the nodes belong to a distributed multicast network; and wherein said step of recording a path comprises ascertaining whether any intervening node is present in the path between the subscriber node and the publisher node. - View Dependent Claims (6, 7, 8)
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9. A method comprising:
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obtaining one or more subscriptions via a bottom-up subscription among nodes in a distributed network of nodes, the distributed network of nodes comprising one or more publisher nodes, one or more fork nodes, and one or more subscriber nodes; and transmitting one or more notifications from a publisher node directly to one or more subscriber nodes utilizing the one or more subscriptions; wherein one or more fork nodes are utilized in transmitting the one or more notifications only in response to determining two or more notifications share a common. path to the one or more fork nodes. - View Dependent Claims (10, 11, 12, 13)
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Specification