Impairment Aware Path Computation Element Method and System
First Claim
1. An apparatus comprising:
- a path computation element (PCE) comprising a processor configured to;
receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path;
after receiving the path computation request, compute a network path; and
perform an impairment validation of the network path specified by the impairment validation request.
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Abstract
The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. In another embodiment, the disclosure includes a method comprising: sending, by a PCC a PCEP path computation request to a PCE, wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path, wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed.
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Citations
33 Claims
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1. An apparatus comprising:
a path computation element (PCE) comprising a processor configured to; receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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sending, by a path computation client (PCC), a path computation element protocol (PCEP) path computation request to a path computation element (PCE); wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path; and wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method comprising:
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performing, by a path computation element (PCE), a first impairment validation of a network path; and after performing the first network path impairment validation, sending, by the PCE, a path computation element protocol (PCEP) reply to a network node; wherein the reply comprises a first indicator that indicates whether the first network path impairment validation is successful. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method comprising:
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receiving, by a path computation element (PCE), a path computation element protocol (PCEP) path computation request (PCReq) message; wherein the PCReq message includes a measure of signal quality to which computed paths should conform. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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Specification