So what. We aren't talking about packet size. We're talking about window size.
At 07:54 PM 10/17/00, Pradeep Kumar wrote:
>Priscilla , Dale,
>
>I spend at least 2 hours per day on Etherpeek for troubleshooting and
>analysing network recreates.
>
>There is an option for bargraph/pie chart of the Packet size distribution
>which I use to see " what density of what size packets " in one scan of
>the eye in real time.
>
>I am using Etherpeek 3.6
>
>Kumar
>
>
>
>
>-----Original Message-----
>From: Priscilla Oppenheimer [EMAIL PROTECTED]
>Sent: Tue, 17 Oct 2000 14:12:05 -0700
>To: [EMAIL PROTECTED]
>Subject: Re: "Window" field - TCP packet
>
>
>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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