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Cc: darrenr@freebsd.org, freebsd-net@freebsd.org
Subject: Re: FreeBSD TCP ignores zero window size
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Andre Oppermann <andre@freebsd.org> wrote:

> The other side is retransmitting data we have already received
> and acknowledged ... That behavior is totally non-compliant.

Any chance our ack of that data got dropped/lost enroute, and the
other side is resending after timing out?