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- Path: sparky!uunet!dtix!mimsy!ra!atkinson
- From: atkinson@itd.nrl.navy.mil (Randall Atkinson)
- Newsgroups: comp.dcom.cell-relay
- Subject: Re: Future of IP routers
- Message-ID: <3445@ra.nrl.navy.mil>
- Date: 26 Aug 92 21:28:18 GMT
- References: <1992Aug25.123428.26295@ccsun.strath.ac.uk> <BtKDH9.7M7@usenet.ucs.indiana.edu> <1992Aug26.092945.4663@ccsun.strath.ac.uk>
- Sender: usenet@ra.nrl.navy.mil
- Followup-To: comp.dcom.cell-relay
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- Organization: Naval Research Laboratory, DC
- Lines: 39
-
- In article <1992Aug26.092945.4663@ccsun.strath.ac.uk> craa85@ccsun.strath.ac.uk ( D.W.Stevenson) writes:
-
- >In the telco scheme of things, security is a problem which handled by the
- >network, when a call connection is set up.
-
- Actually, the telcos don't have ANY security in their call setup
- protocols. Go read the CCITT documents and be disappointed -- I was.
- Signalling System 7, widely used by telcos and specified by CCITT,
- could really stand some minimal authentication at call setup time.
-
- >IP is designed to be processed in software, not in silicon, and
- >this may mean there is no easy way of carrying out the filtering you suggest.
-
- I'm sure that Protocol Engines, Inc. would be very pleased to sell
- you custom silicon for TCP/IP off the shelf today. They would much
- rather have you use that silicon for XTP, but they would still be
- happy for you to use it for TCP/IP (followups to this paragraph belong
- in comp.protocols.misc).
-
- >Because routers are store and forward, I would have thought that time critical
- >traffic such as video/audio traffic would be very difficult to pass across a
- >router at high speed. Since the telcos are billing ATM as ideal to carry
- >multimedia traffic, this implies that the idea of using ATM routing at the
- >network level is more suitable for high speed multi media traffic than IP.
-
- Curiously enough, off the shelf IP routers (e.g. CISCO AGS+)
- coped remarkably well with the IETF videocast from Boston in July.
- I was in Boston, but the simulcast had a local terminus (thanks Allison !)
- and the folks who saw it found it quite useful and thought quality was OK
- if not great.
-
- Claims that one cannot do multimedia over IP look kind of
- silly when you have seen real-time voice/video over today's Internet.
- Given some tweaking of things, I'm quite sure that better quality and
- performance is possible while still using a connectionless network
- protocol and doing routing at the network layer.
-
- Ran
- atkinson@itd.nrl.navy.mil
-