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- Path: sparky!uunet!noc.near.net!noc.near.net!news
- From: kwe@noc.near.net (Kent England)
- Newsgroups: comp.protocols.tcp-ip
- Subject: Re: What are the Pros/Cons of Multi-protocol routing?
- Date: 21 Aug 92 18:51:39 GMT
- Organization: BBN
- Lines: 30
- Distribution: usa
- Message-ID: <l9aeprINNsg0@noc.near.net>
- References: <86673@netnews.upenn.edu>
- Summary: There really are Pros and Cons
-
- In article <86673@netnews.upenn.edu> Anthony Olejnik writes:
- >
- >Currently we have a pure IP only backbone.
- >
- >What are some of the advantages/disadvantages of keeping the
- >backbone pure (with only IP)?
- >
- >What are the advantages/disadvantages of tunnelling the other
- >protocols (AppleTalk/IPX/DecNet) within IP?
- >
- >Any comments would be *GREATLY* appreciated.
-
- TCP/IP has more sophisticated routing protocols than many of the other
- internet protocols you can run, and it and OSI are the only protocols
- suitable for a public internet.
-
- The disadvantage of a single protocol backbone is tunneling everything
- else when routing is easier.
-
- But tunneling is sometimes necessary such as for getting AppleTalk across
- the Internet, for source routed bridging across a complex WAN, or for
- tunneling SDLC.
-
- Don't underestimate the complexity of supporting additional protocols
- whether tunneled or routed. Make sure you have enough features and
- filters to control them. But if they are important enough to your
- situation, then by all means support them.
-
- --Kent
-
-