Re: Sending empty segment upon receiving partial ACK

Cheng Cui <[email protected]>
Newsgroups gmane.os.freebsd.devel.net
Message-ID <[email protected]> 

> On Feb 26, 2025, at 10:21, jaeyong yoo <[email protected]> wrote:
> 
> Yes that behavior was observed during recovery phase and during that
> time frame, there were no packets going out to the other direction so
> there is no reason to send pure ACK (and the ack number for those 3
> acks are the same and no possibility of challenge ack as well).


Isn't loss recovery phase used for data retransmission? There should be retransmitting packets.  But what do you mean "no packets going out"?

Best Regards,
Cheng Cui
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