Method of reducing traffic during path restoration
AssigneeCisco Technology, Inc.
InventorsAli Najib Saleh, Haig Michael Zadikian, Zareh Baghdasarian, Vahid Parsi
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Abstract
A method of operating an network is described. The network includes a number of nodes connected by a number of links. A method according to the present invention provisions a virtual path between a first and a second one of the plurality of nodes by: identifying the first and the second nodes, discovering a physical path from the first node to the second node, and establishing the virtual path. The method discovers a physical path from the first node to the second node by automatically identifying nodes forming the physical path. The method establishes the virtual path by configuring a set of connections between the nodes forming the physical path.
Claims50
A method comprising:
- receiving a link state advertisement, wherein
- the link state advertisement is received at a first node of a communication system, and
- the link state advertisement comprises a hop count field;
- incrementing the hop count field;
- and
- transmitting the link state advertisement in response to a determination that the hop count field is less than a maximum hop count value and a determination that an instance of the link state advertisement has not been generated during a minimum link state advertisement interval.
A network element comprising:
- a processor configured to:
- receive a link state advertisement, wherein
- the link state advertisement comprises a hop count field;
- increment the hop count field;
- and
- transmit the link state advertisement in response to a determination that the hop count field is less than or equal to a maximum hop count value and a determination that an instance of the link state advertisement has not been generated during a minimum link state advertisement interval.
A computer system comprising:
- a processor;
- a computer readable medium coupled to the processor;
- and
- computer code, encoded in the computer readable medium, configured to cause
- the processor to:
- receive a link state advertisement, wherein the link state advertisement comprises a hop count field;
- increment the hop count field;
- and
- transmit the link state advertisement in response to a determination that the hop count field is less than or equal to the maximum hop count value and a determination that an instance of the link state advertisement has not been generated during a minimum link state advertisement interval.
An apparatus comprising:
- means for receiving a link state advertisement, wherein the link state advertisement comprises a hop count field;
- means for incrementing the hop count field;
- and
- means for transmitting the link state advertisement in response to a determination that the hop count field is less than a maximum hop count value and a determination that an instance of the link state advertisement has not been generated during a minimum link state advertisement interval.
A computer program product encoded in computer readable media, comprising:
- a first set of instructions, executable on a computer system, configured to receive a link state advertisement, wherein the link state advertisement comprises a hop count field;
- a second set of instructions, executable on the computer system, configured to increment the hop count field;
- and
- a third set of instructions, executable on the computer system, configured to transmit the link state advertisement in response to a determination that the hop count field is less than a maximum hop count value and a determination that an instance of the link state advertisement has not been generated during a minimum link state advertisement interval.
Dependencies are inferred from the claim text.