1. Encapsulation of Path Segment in SRv6
Publication: IETF Individual Draft
Publication History: 2019-07
Publication URL: https://tools.ietf.org/html/draft-li-6man-srv6-path-segment-encap-00
Description:
Segment Routing (SR) allows for a flexible definition of end-to-end paths by encoding paths as sequences of sub-paths, called “segments”. Segment routing architecture can be implemented over IPv6 data plane, called SRv6. In some use-cases such as end-to-end SR Path Protection and Performance Measurement (PM), SRv6 path need to be identified. This document defines the encoding and processing of Path Segment in SRv6 networks.
2. SR Policies Extensions for Path Segment and Bidirectional Path in BGP-LS
Publication: IETF Individual Draft
Publication History: 2019-11
Publication URL: https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-sr-policy-path-segment-00
Description:
This document specifies the way of collecting configuration and states of SR policies carrying Path Segment and bidirectional path information by using BPG-LS. Such information can be used by external conponents for many use cases such as performance measurement, path re-optimization and end-to-end protection.
3. SR Policy Extensions for Path Segment and Bidirectional Path
Publication: IETF WG Draft
Publication History: 2019-10
Publication URL: https://tools.ietf.org/html/draft-ietf-idr-sr-policy-path-segment-00
Description:
A Segment Routing (SR) policy is a set of candidate SR paths consisting of one or more segment lists with necessary path attributes. For each SR path, it may also have its own path attributes, and Path Segment is one of them. A Path Segment is defined to identify an SR path, which can be used for performance measurement, path correlation, and end-2-end path protection. Path Segment can be also used to correlate two unidirctional SR paths into a bidirectional SR path which is required in some scenarios, for example, mobile backhaul transport network. This document defines extensions to BGP to distribute SR policies carrying Path Segment and bidirectional path information.