At 02:51 PM 9/4/01, Leigh Anne Chisholm wrote:
> From what I understand, the term "segment" is used to describe a
>connection-oriented protocol at the Transport layer. The term "datagram" is
>used to describe a connectionless protocol at the Transport layer.
>
>"Segment" isn't specific to TCP - but rather all connection-oriented
>protocols that operate at the Transport layer.
What are some other examples?
AppleTalk Transaction Protocol (ATP) doesn't use the term "segment."
Neither does the AppleTalk Datastream Protocol (ADSP). They are both
connection-oriented transport-layer protocols.
NetWare Core Protocol (NCP) doesn't use "segment." Neither does NetWare
Sequenced Packet Exchange (SPX).
Some explanations of the DECnet Network Services Protocol (NSP) do use
"segment."
I can't remember for Banyan VINES! Maybe it does!? ;-)
A quick look at Tannenbaum, who does a nice job with generic but technical
descriptions of the layers, found no use of the word segment. He uses the
OSI term Transport Protocol Data Unit (TPDU) and the term "message." He
doesn't even use segment when discussion TCP.
Priscilla
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> > Priscilla Oppenheimer
> > Sent: Wednesday, September 05, 2001 11:51 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: need definations for Frames, Packets, Segments [7:18629]
> >
> >
> > A lot of people use the term "frame" only when discussing a
> > data-link-layer
> > protocol data unit. The term "packet" is used only when discussing a
> > network-layer protocol data unit. Many experts are loose with
> > these terms,
> > however. I'm working with an expert right now who doesn't bother
> > with those
> > definitions and uses the terms interchangeably.
> >
> > Segment, on the other hand, does have a specific meaning. It is the
> > protocol data unit used by TCP.
> >
> > Priscilla
> >
> > At 12:20 PM 9/5/01, [EMAIL PROTECTED] wrote:
> > >Hello All:
> > >
> > >I'm reading a lot of TCP/IP books and it seems no one author breaks down
> > >what
> > >a frame, packet or segment is. Can anyone define what these are
> > or where I
> > >might find a site that explains?
> > >
> > >thank you
> > ________________________
> >
> > Priscilla Oppenheimer
> > http://www.priscilla.com
________________________
Priscilla Oppenheimer
http://www.priscilla.com
Message Posted at:
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