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dcsctp: Disable TCP style slow start

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Due to a limit socket send buffer, it's quite easy to fill it up when
using exponential slow start, which results in dropping a lot of packets
and having to retransmit those.

Disabling this, to align it to how SCTP normally behaves, and then try
to stabilize it later. With SCTP slow start, it will increase with one
MTU for each RTT when there is no packet loss. Even this mode will
experience packet loss, but not as much will be lost, and it will
stabilize quicker.

Bug: webrtc:12614
Change-Id: Ibc484b19b7e708fe5bd837bbef178a2f69b7211f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/218203
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33969}
This commit is contained in:
Victor Boivie
2021-05-10 20:21:17 +02:00
committed by WebRTC LUCI CQ
parent 78f04d8f4d
commit d24729693d
1 changed files with 1 additions and 1 deletions
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2
net/dcsctp/public/dcsctp_options.h
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@ -115,7 +115,7 @@ struct DcSctpOptions {
DurationMs delayed_ack_max_timeout = DurationMs(200);
// Do slow start as TCP - double cwnd instead of increasing it by MTU.
bool slow_start_tcp_style = true;
bool slow_start_tcp_style = false;
// The initial congestion window size, in number of MTUs.
// See https://tools.ietf.org/html/rfc4960#section-7.2.1 which defaults at ~3