Multicast in SR Networks

Document Type Expired Internet-Draft (individual)
Authors Zhaohui Zhang  , IJsbrand Wijnands  , Andrew Dolganow  , Liang Geng 
Last updated 2019-02-16 (latest revision 2018-08-15)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


With Segment Routing (SR) architecture [rfc8402], a unicast flow can be routed through an SR network following an explicit path specified in the packet, w/o the need for per-flow state in the network. As a result, the otherwise needed protocols to signal the per-flow unicast state can also be removed from the network. This document discusses options for multicast in an SR network.


Zhaohui Zhang (
IJsbrand Wijnands (
Andrew Dolganow (
Liang Geng (

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