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- Newsgroups: comp.dcom.cell-relay
- Path: sparky!uunet!mcsun!sunic!sics.se!craig
- From: craig@sics.se (Craig Partridge)
- Subject: clarifying the role of SSCOP?
- Message-ID: <1992Nov11.185930.2664@sics.se>
- Organization: Swedish Institute of Computer Science, Kista
- Date: Wed, 11 Nov 1992 18:59:30 GMT
- Lines: 32
-
- Can we back up a little bit? There appears to be some contradictions in the
- notes about SSCOP. Let me see if I can characterize my puzzlement:
-
- Is SSCOP always to be run over AAL5, or is it really just for
- applications that specially request it (like SS7, or telephone
- calls over satellite links)?
-
- It seems to me that different notes seem to suggest different answers.
-
- From my point of view, as long as I can always ignore SSCOP (i.e. not
- have it mucking up my cells for data communications), I'm happy. All these
- arguments about what SSCOP will do for general data comm are, in my view,
- specious. (End-to-end error recovery is better, regardless of speed and
- error rates. One can tune the end-to-end protocols to dynamically adapt
- to the environment presented).
-
- But I understand that there are folks outside data comm who like
- to think of the network as providing a reliable service, and hey, if they
- want the pain, that's their business.
-
- Craig
- craig@bbn.com
-
- PS: If it helps understand where I'm coming from. A few years ago a number
- of "expert reports" were published saying that high-speed networks and new
- technologies would force us to completely rethink data networking. I thought
- those statements were silly -- the likelihood that the tried and true
- principles of data networking would all get thrown out the window seemed
- small. So I've stuck to philosophy that what we have learned from experience
- is right, until someone proves it wrong. So I stick to using the end-to-end
- argument (which is not TCP/IP specific and was formulated after TCP/IP was
- developed), the principle that end-to-end error recovery is best, etc.
-