That makes sense!

Thank you.

Pierre-Alex

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Priscilla Oppenheimer
Sent: Friday, February 01, 2002 8:41 PM
To: [EMAIL PROTECTED]
Subject: Re: TCP Delayed ACK Timer [7:34150]


The "Host Requirements RFC" (RFC 1122) states that a TCP implementation
should implement delayed ACKs, so I bet Cisco does. However, you do realize
that it's not very relevant, don't you? How often is the Cisco router the
end-point in a TCP conversation? Only when you Telnet or HTTP to it. When
the router is just forwarding packets that happen to carry TCP, it wouldn't
get involved in ACKs at all.

With Telnet, I bet it's especially not relevant, because the PSH bit gets
set which probably resets the ACK timer and forces a (non-delayed) ACK.

Priscilla

At 07:14 PM 2/1/02, Pierre-Alex GUANEL wrote:
>Does Cisco support delayed ack timers?
>
>In Microsoft TCP/IP implementation,
>delayed ack timers are used on the receiver
>to force an acknowledgement when packets are received out of sequence
>and the receive window has not yet be filled to its threshold.
>
>Thanks,
>
>Pierre-Alex
________________________

Priscilla Oppenheimer
http://www.priscilla.com




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