Segment Routing On-Demand Next-hop (ODN) Demo

Segment Routing On-Demand Next-hop (ODN) functionality enables on-demand creation of SRTE Policies for service traffic. Using the IOS XR based Segment Routing Stateful Multi-domain Path Computation Element (SR PCE), end-to-end SRTE Policy paths can be computed to provide end-to-end Segment Routing connectivity, even in multi-domain networks.
The On-Demand Next-hop functionality provides optimized service paths to meet customer and application SLAs (such as latency, disjointness) without any pre-configured TE tunnel and with automatic steering of the service traffic on the SRTE Policy without static route, autoroute announce, or policy based routing.
With this functionality the Network Service Orchestrator can deploy the service and its requirements. The service head-end router requests the PCE to compute the path for the service and then instantiates a SRTE Policy with the computed path and steers the service traffic into that SRTE Policy. If the topology changes, the stateful PCE updates the SRTE Policy path. This happens seamlessly, while TI-LFA protects the traffic in case the topology change happened due to a failure.
More Segment Routing information at http://segment-routing.net