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- Path: sparky!uunet!bostech!rich
- From: rich@bostech.com (Richard Baughman)
- Subject: how to connect remote synch node to ethernet?
- Message-ID: <1992Dec30.220150.26126@bostech.com>
- Organization: Boston Technology, Inc.
- Date: Wed, 30 Dec 92 22:01:50 GMT
- Lines: 50
-
- We are trying to determine the best (and least expensive) way to connect
- a remote Unix (Sun) workstation to an ethernet network using TCP/IP. We have
- a need for a permanent synchronous (leased-line) connection that will allow the
- remote workstation to function as though it were connected directly to the
- local network coax. A dialup connection is not adequate - we need a 24-hour
- permanent connection.
-
- The link will be supporting ascii and binary messages going mostly *to* the
- remote system, with an occasional message coming *from* the remote system, both
- via TCP/IP sockets. The i/o rate will be fairly low most of the time (an
- interactive administrative application that sends requests and gets status
- results). Very infrequently (once or twice a week), the link requires a
- download of an ascii file between 50K and 1MB in size.
-
- I am only vaguely familiar with leased-lines, bridges, routers, and SLIP, and
- know nothing about point-to-point protocol. My questions are:
-
- 1) What are the alternatives for connecting a remote workstation *directly
- to an ethernet network* (i.e., not through a local serial port or internal
- bus card on a workstation)? I realize that a serial port solution appears
- to be much cheaper, but they make the remote connection totally dependent
- on the local workstation, and we'd like to avoid that (redundancy, etc.).
- I am looking for product and company names, descriptions, pricing and
- supported communication links that will meet this requirement.
-
- 2) What is point-to_point protocol? Is it a replacement for SLIP? Are these
- protocols independent of the nature of the phone link (synchronous vs.
- dialup)?
-
- 3) Does anyone know what "Basic Rate" (ISDN standard) is? It appears to be
- a synchronous-type link that is fairly standard outside the U.S.
-
- 4) Will our existing software, written to use TCP/IP socket connections, work
- unchanged with these solutions?
-
- I have contacted Telebit about their Netblazer product; it seems to be a viable
- solution, but costs almost $4,000 per node ($8,000 for our setup, although we
- may be able to use their Sbus synchronous card in the remote workstation, which
- lowers the cost to $900 at one end). I talked to Microcom, but their bridge
- requires a PC at each end and is priced around $6500 per node. I also saw a
- posting here about Rockwell/CMC and their Nethopper, but it supports dialup
- only (for $1995 per node).
-
- For the record, this will be installed in Japan (both local network and remote
- node).
-
- Thanks for any/all help/info you can provide. Please reply via email.
- --
- Rich Baughman / Boston Technology / Wakefield, MA
- rich@bostech.com
-