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US 8,427,962 B1Granted
Control of inter-zone/intra-zone recovery using in-band communications
AssigneeCisco Technology, Inc.
InventorsHaig Michael Zadikian, Zareh Baghdasarian, Ali Najib Saleh, Vahid Parsi
Life of this patent
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Abstract
A method of communicating information regarding a failure is disclosed. The method includes generating failure information. The failure affects a virtual path, which is between a first node and a second node. A first zone includes the first node, and a second zone includes the second node. The failure information can include, for example, a zone identifier and/or an action code.
Claims19
A method comprising:
- receiving failure information, wherein
- said failure information relates to a failure affecting a virtual path in a communications network,
- said virtual path is between a first node and a second node of said communications network,
- a first zone of said communications network comprises said first node,
- a second zone of said communications network comprises said second node,
- said failure information is received at a border node of said first zone, and
- said border node acts as a proxy node for said first node;
- determining whether available resources of said border node are sufficient to support a restoration of said virtual path, wherein
- said available resources of said border node are resources of said border node available to support said restoration;
- and
- initiating said restoration, wherein
- said restoration is initiated in response to a determination that said available resources of said border node are sufficient to support said restoration, and
- said restoration is initiated by said border node.
10 more elements
A method comprising:
- receiving failure information, wherein
- said failure information relates to a failure affecting a virtual path in a communications network,
- said virtual path is between a first node and a second node of said communications network,
- a first zone of said communications network comprises said first node,
- a second zone of said communications network comprises said second node, and
- said failure information is received at said first node;
- and
- initiating restoration of said virtual path, said restoration being initiated by said first node, wherein
- said restoration is initiated in response to a determination that available resources of a border node of said first zone are sufficient to support said restoration,
- said restoration uses intra-zone resources in said first zone, and
- said restoration uses inter-zone resources outside said first zone.
8 more elements
A system comprising:
- a processor;
- computer readable medium coupled to said processor;
- and
- computer code, encoded in said computer readable medium, wherein said computer code is executable to cause said processor to:
- receive failure information, wherein
- said failure information relates to a failure affecting a virtual path in a communications network,
- said virtual path is between a first node and a second node of said communications network,
- a first zone of said communications network comprises said first node,
- a second zone of said communications network comprises said second node,
- said failure information is received at a border node of said first zone,
- said border node comprises said processor, and
- said border node acts as a proxy node for said first node;
- and
- determine whether available resources of said border node are sufficient to support a restoration of said virtual path, wherein
- said available resources of said border node are resources of said border node available to support said restoration;
- and
- initiate said restoration, wherein
- said restoration is initiated in response to a determination that said available resources of said border node are sufficient to support said restoration.
15 more elements
A computer system comprising:
- a processor;
- a computer-readable medium, coupled to the processor;
- a network interface, coupled to the processor, wherein
- said network interface is configured to receive failure information,
- said failure information relates to a failure affecting a virtual path in a communications network,
- said virtual path is between a first node and a second node of said communications network,
- a first zone of said communications network comprises said first node,
- a second zone of said communications network comprises said second node,
- said failure information is received at a border node of said first zone, and
- said border node is configured to act as a proxy node for said first node;
- and
- computer code, encoded in said computer readable medium, wherein said computer code is executable to cause said processor to
- determine whether available resources of said border node are sufficient to support a restoration of said virtual path, wherein
- said available resources of said border node are resources of said border node available to support said restoration, and
- cause said border node to initiate said restoration, wherein
- said restoration is initiated in response to a determination that said available resources of said border node are sufficient to support said restoration.
13 more elements
A method comprising:
- receiving failure information, wherein
- said failure information relates to a failure affecting a virtual path in a communications network,
- said virtual path is between a first node and a second node of said communications network,
- a first zone of said communications network comprises said first node,
- a second zone of said communications network comprises said second node,
- said failure information is received at a border node of said first zone, and
- said border node acts as a proxy node for said first node;
- determining whether available resources of said border node are sufficient to support a restoration of said virtual path, wherein
- said available resources of said border node are resources of said border node available to support said restoration;
- and
- initiating said restoration, wherein
- said restoration is initiated in response to a determination that said available resources of said border node are sufficient to support said restoration.
9 more elements
Dependencies are inferred from the claim text.