While the peer does not drain its receive buffer, every forwarded packet
would re-stall the reader thread for up to writeTimeout(), so a queued
Disconnect frame could wait behind the whole backlog. Remember a stalled
target (send slower than 2 s) and drop data for a short cooldown instead
of stalling; keep dispatcher writes bounded at 3 s. Control frames
(Connected/Disconnected) are unaffected.
andrey
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