Inter-domain congestion notification for SRv6-based distributed RoCEv2 network
draft-hu-acn-rocev2-00
| Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
|---|---|---|---|
| Authors | Zehua Hu , Yongqing Zhu , Xuesong Geng , Jiayuan Hu , Tanxin Pi | ||
| Last updated | 2026-03-16 (Latest revision 2025-09-03) | ||
| Replaces | draft-hu-rtgwg-rocev2-fcn | ||
| 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This Internet-Draft is no longer active.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
Some AI services drive the need to transmit RMDA packets across wide area network (WAN) via SRv6 tunnels. RoCEv2 is the most popular open standard for achieving RDMA and network offloads over ethernet, with its congestion control based on the combination of PFC and ECN. Due to certain limitations of PFC and ECN, some drafts have been put forward to realize more faster congestion notification (FANTEL). Upon detection of congestion, these drafts proposals directly sending congestion notifications to relevant nodes, enabling near real-time congestion control. However, in SRv6-based WAN environments, congestion notifications cannot be directly delivered from WAN devices to intra-DC devices. This document specifies new SRv6 Segment Identifiers (SIDs) and the corresponding processing rules for device, supporting the forwarding of congestion notification across domains.
Authors
Zehua Hu
Yongqing Zhu
Xuesong Geng
Jiayuan Hu
Tanxin Pi
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)