System and method for call-blocking-triggered topology updates in source routed signaling protocol communication networks
AssigneeAlcatel-Lucent Canada Inc.
InventorsAndrew Dolganow, Shawn P. McAllister
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Abstract
Advertising available resource information for a link in a communication network is provided. The network uses a source routing protocol. The source routing protocol uses the available resource advertisements for identifying a path for a call routed through the node in the network. The method advertises the available resource information for the node to adjacent nodes linked to the node in the network when the node receives a request for a connection to be routed over the link, the request seeking resources exceeding available resources for the link, but not exceeding the last advertised resources for the link.
Claims24
A method of updating information regarding resources for a link in a communication network, said network using a source routing protocol for identifying a path for a call routed utilizing said information related to said link, said method comprising:
- receiving at the node a request to establish a path through the network;
- and
- advertising updated resource information reflecting a current state of the resources associated with the link to adjacent nodes linked to said node if available resources of the link are insufficient to fulfill the request.
An apparatus for updating information regarding resources for a link of a node in a communication network, said communication network using a source routing protocol for identifying a path for a call routed utilizing said information related to said link, said apparatus comprising:
- a communication switch associated with said node for receiving a request for establishing the path;
- and
- a processing module associated with said switch for initiating advertisement of updated resource information reflecting a current state of the resources associated with the link if available resources of the link are insufficient to fulfill the request.
Dependencies are inferred from the claim text.