Generalized SRv6 Network Programming

Document Type Expired Internet-Draft (individual)
Authors Weiqiang Cheng  , Zhenbin Li  , Cheng Li  , Chongfeng Xie  , Cong Li  , Hui Tian  , Feng Zhao 
Last updated 2021-09-15 (latest revision 2021-03-14)
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As the deployment of SRv6, some new requirements are proposed, such as SRv6 compression, transporting over SR-MPLS/MPLS and IPv4 domains. Therefore, it is necessary to consider other types of segments or sub-paths in the end-to-end SRv6 network programming. This document proposes Generalized Segment Routing over IPv6 (G-SRv6) Networking Programming, which supports to encode multiple types of Segments in a SRH, called Generalized SRH (G-SRH). These Segments can be called Generalized Segment, and the ID can be Generalized Segment Identifier (G-SID), which may include an SRv6 SID(128 bits), C-SIDs, MPLS labels, or IPv4 tunnel information. This document also defines the mechanisms of Generalized SRv6 Networking Programming and the requirements of related protocol extensions of control plane and data plane.


Weiqiang Cheng (
Zhenbin Li (
Cheng Li (
Chongfeng Xie (
Cong Li (
Hui Tian (
Feng Zhao (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)