Re: TCPPureAcks TCPHPAcks - Definition?

From: Nivedita Singhvi (niv@us.ibm.com)
Date: Fri Nov 15 2002 - 17:30:01 EST


> I am browsing linux TCP MIB header code and I see many fields but no
> explanation on what those fields are.
>
> Some of them are obvious but others are not.
>
> you can see all of them by typing
>
> /proc/net/netstat
>
> Does anyone know about what these fields contain? Is it documented anywhere?
>
> I did a google but could not find anything.

TCPHPAcks - An ack received in TCP fast path. i.e.
            header prediction path. In sequence ack
            that moves the window. See tcp_ack()
            in tcp_input.c.

TCPPureAcks - Pure ack recvd (i.e. no data was sent).
            This excludes the above category.

I am working on documenting this stuff. Probably a couple
of weeks away.

I also suggest posting to netdev@oss.sgi.com, which is the
mailing list targeted to networking developers, or even
linux-net@vger.kernel.org, which is the mailing list most
networking users post problem reports and questions on.
Your chances of reaching a networking person who has time to
answer the question are greater :).

thanks,
Nivedita
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