SRv6 Extensions for RDMA Multicast Delivery
draft-li-spring-rdma-multicast-over-srv6-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Zhiqiang Li , Zongpeng Du , Wei Cheng , Junjie Wang , Guoying Zhang | ||
| Last updated | 2026-09-01 (Latest revision 2026-02-28) | ||
| RFC stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats | |||
| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Expired | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
This document specifies SRv6 (Segment Routing over IPv6) extensions for multicast delivery of RDMA (Remote Direct Memory Access) Reliable Connection (RC) traffic. It defines a new SRv6 endpoint behavior, End.MT, that performs per-receiver RDMA Base Transport Header (BTH) modifications at edge nodes of the multicast tree. It also specifies procedures for hop-by-hop aggregation of RDMA ACK, NACK, and CNP response messages along the reverse path. Together, these extensions allow RDMA RC endpoints to communicate using standard point-to-point Queue Pair (QP) semantics while the network distributes data packets over an IP multicast tree. Target deployment scenarios include multi-replica distributed storage writes, HPC collective communications, AI training parameter distribution, and large-scale inference KV cache distribution.
Authors
Zhiqiang Li
Zongpeng Du
Wei Cheng
Junjie Wang
Guoying Zhang
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)