Subject: Re: some sack fixes
To: None <kurahone@sigusr1.org>
From: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
List: tech-net
Date: 03/15/2005 07:30:43
hi,

> I'm unsure about "send SACKs regardless of TF_ACKNOW".  Is there any
> specific reason why you want to do this?  It's implicit that we'll
> be sending an ACK back when we have SACK information (as in, we received
> something out of order so we will be sending a Dup-Ack back), so I
> guess that the check isn't strictly neccecary, but...

TF_ACKNOW will be cleared once we send an ACK.
however, we can still need to send (the same) SACK for the next segment.

YAMAMOTO Takashi