diff --git a/README.md b/README.md index 129df3938c840..330d5c20668e8 100644 --- a/README.md +++ b/README.md @@ -9,8 +9,8 @@ Namely: [iproute2 repository](https://github.com/L4STeam/iproute2) - An implementation of Accurate ECN (see branch AccECN-full) - The base implementation of TCP Prague (see branch tcp_prague) -- ECT(1) enabled DCTCP -- ECT(1) enabled BBR v2 (from v2alpha branch in +- ECT(1) and AccECN enabled DCTCP +- ECT(1) and AccECN enabled BBR v2 (from v2alpha branch in [BBR v2 repo](https://github.com/google/bbr)) # Installation (debian derivatives) @@ -93,7 +93,7 @@ tc/tc qdisc replace dev eth0 root dualpi2 ... While dualpi2 can work with DCTCP, DCTCP suffers from a few unfortunate interactions with GSO/pacing/..., resulting in under-utilization. As a result, -we advice you to use tcp_prague which currently has +we advise you to use tcp_prague which currently has basic fixes to those limitations. Note that this might still under-perform in heavily virtualized settings, as scheduling becomes less reliable. @@ -103,6 +103,7 @@ sysctl -w net.ipv4.tcp_congestion_control=prague sysctl -w net.ipv4.tcp_ecn=3 ``` -Prague attempts to negotiate Accurate ECN automatically. -Note that, at the moment, Accurate ECN **must** be enabled on both ends of a -connection in order it with DCTCP or BBR v2. +Prague, BBRv2 and DCTCP attempt to negotiate Accurate ECN automatically once +the AccECN sysctl is enabled. +Note that, Accurate ECN **must** be enabled on both ends of a +connection in order for the negotiation to succeed.