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ackhandler: detect ECN mangling (#4080)

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* ackhandler: detect ECN mangling

Mangling means that a path is re-marking all ECN-marked packets as CE.

* ackhandler: only detect ECN mangling once all testing packets were sent
This commit is contained in:
Marten Seemann
2023-09-12 13:18:33 +07:00
committed by GitHub
parent 2a8dc12a53
commit d52e9f35bc
5 changed files with 53 additions and 7 deletions
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4
logging/types.go
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@@ -121,6 +121,8 @@ const (
ECNFailedLostAllTestingPackets
// ECNFailedMoreECNCountsThanSent is emitted when an ACK contains more ECN counts than ECN-marked packets were sent
ECNFailedMoreECNCountsThanSent
// ECNFailedTooFewECNCounts is emitted when contains fewer ECT(0) / ECT(1) counts than it acknowledges packets
// ECNFailedTooFewECNCounts is emitted when an ACK contains fewer ECN counts than it acknowledges packets
ECNFailedTooFewECNCounts
// ECNFailedManglingDetected is emitted when the path marks all ECN-marked packets as CE
ECNFailedManglingDetected
)