Hello everyone, We have just submitted a new draft titled "Priority-based Flow Control SID in SRv6". The concept of this draft originates from cross-DC communication scenarios, aiming to achieve end-to-end flow control through coordination between WAN and data center networks by enhancing flow control capabilities of selected WAN devices, thereby reducing network packet loss.
This document proposes a new End.X.PFC SID to identify network interfaces with PFC capabilities, enabling backpressure frames to be transmitted across hops via SRv6 tunnels. This technology can be leveraged to mitigate congestion and packet loss caused by micro-burst traffic in the network, with enhanced effectiveness in specific scenarios such as RDMA over WAN and elephant flow environments. Please review the draft in the following link: https://datatracker.ietf.org/doc/draft-ruan-spring-priority-flow-control-sid/ Welcome any feedback and comments. Best Regards Ruanzheng on behalf of co-authors
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