Subject: Snd_max reset?

From: "[email-masked]" <[email-masked]>
Date: Mon, 6 Jan 2003 16:14:14 +0100

In a article I read :
"...many existing TCP implementations reset snd_max (the highest byte sent) to snd_una (the highest byte acknowledged) when they exit persist state........."

I recall that TCP enters persist state whenever a zero advertised window has been received and exit persist state when a successive non-zero advertised window has been received.

Please, could someone tell me which existing TCP implementations follow the behaviour described upon? (reset snd_max to snd_una )

Thanks in advance,
Pierluigi