| /* |
| * Copyright 2024 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef API_TRANSPORT_ECN_MARKING_H_ |
| #define API_TRANSPORT_ECN_MARKING_H_ |
| |
| namespace webrtc { |
| |
| // TODO: bugs.webrtc.org/42225697 - L4S support is slowly being developed. |
| // Help is appreciated. |
| |
| // L4S Explicit Congestion Notification (ECN) . |
| // https://www.rfc-editor.org/rfc/rfc9331.html ECT stands for ECN-Capable |
| // Transport and CE stands for Congestion Experienced. |
| |
| // RFC-3168, Section 5 |
| // +-----+-----+ |
| // | ECN FIELD | |
| // +-----+-----+ |
| // ECT CE [Obsolete] RFC 2481 names for the ECN bits. |
| // 0 0 Not-ECT |
| // 0 1 ECT(1) |
| // 1 0 ECT(0) |
| // 1 1 CE |
| |
| enum class EcnMarking { |
| kNotEct = 0, // Not ECN-Capable Transport |
| kEct1 = 1, // ECN-Capable Transport |
| kEct0 = 2, // Not used by L4s (or webrtc.) |
| kCe = 3, // Congestion experienced |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // API_TRANSPORT_ECN_MARKING_H_ |
