Computing Service Chain-Aware Paths

摘要

A method implemented by a path computation element (PCE), comprising receiving a path computation request to compute a network path for a source-destination pair in a service chain (SC) network, wherein the path computation request comprises at least one network routing constraint and a service function (SF) input associated with a plurality of SFs, computing a plurality of network paths through the network for the source-destination pair according to the network routing constraint, selecting at least a first of the network paths according to the SF input, and sending a path computation response indicating at least the first network path in response to the received path computation request.

主权项

1. A method comprising:
receiving, by a path computation element (PCE), a path computation request to compute a network path for a source-destination pair in a service chain (SC) network, wherein the path computation request comprises at least one network routing constraint and a service function (SF) input associated with a plurality of SFs; computing, by the PCE, a plurality of network paths through the network for the source-destination pair according to the network routing constraint; selecting, by the PCE, at least a first of the network paths according to the SF input; and sending, by the PCE, a path computation response indicating at least the first network path in response to the received path computation request.