Hmm, sounds like I need to dust off my old copy of Visual Studio (and my
brain) and bang this utility out.
Maybe after I pass the lab. No, then I've got the design lab to prepare for
(have you heard anything about that???)... Maybe someone else better do
it...
Seriously - I agree that it would be a cool tool! I didn't know that
EtherPeek would let you capture and view the decode at the same time - that
is really cool! I need that now... I better take a look that EtherPeek. Does
it run only on a Mac?
Dale
[=`)
>From: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>Reply-To: Priscilla Oppenheimer <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: "Window" field - TCP packet
>Date: Tue, 17 Oct 2000 14:12:05 -0700
>
>Nice answer, Dale.
>
>Do you think he was literally asking for a utility that would show the
>window size as a station was transmitting? That would be quite useful
>actually...
>
>EtherPeek from www.WildPackets.com (used to be AG Group) lets you capture
>and display packets at the same time. So you could filter on your station
>and its partner and track windows that way. You could see the receive
>window rather easily, since it's size is advertised on every segment. The
>send window would be harder, requiring an analysis of sequence numbers and
>the other side's receive window.
>
>But I can't think of a utility that graphically shows send and receive
>windows for a transmitter. That would be really cool, wouldn't it?
>
>Priscilla
>
>
>At 03:55 PM 10/17/00, Dale Holmes wrote:
>>Each station in a TCP conversation will advertise a window which
>>represents the amount of buffer space that the station has available for
>>this conversation. The window size of a packet is the buffer available for
>>the station that is sending the packet, indicating to the recipient how
>>much data to send.
>>
>>It is called a "sliding window" because it is variable and will change
>>throughout the course of the conversation.
>>
>>For more detail on this, I would look at Douglas Comer's "Internetworking
>>with TCP/IP" volume I.
>>
>>I have not seen a utility that will display the window size during the
>>transmission of the packet. A sniffer will display all of the packet
>>fields, but only after you have captured the transfer and opted to display
>>it (but of course you knew that already)...
>>
>>Dale
>>[=`)
>>
>>
>>>From: "Billy Monroe" <[EMAIL PROTECTED]>
>>>Reply-To: "Billy Monroe" <[EMAIL PROTECTED]>
>>>To: [EMAIL PROTECTED]
>>>Subject: "Window" field - TCP packet
>>>Date: Tue, 17 Oct 2000 12:05:12 -0700
>>>
>>>Hello:
>>>
>>>Is there any way to see the size of the (sliding) window when transmiting
>>>a
>>>TCP packet ?
>>>
>>>I saw a "Window" field using a sniffer and the number was big 28765...
>>>Please correct me if I am wrong: I believe that is the buffer of the
>>>receiving station.
>>>
>>>Thanks,
>>>
>>>Ronaldo
>>>
>>>
>>>
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>
>
>________________________
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
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