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From: twh@mibte.UUCP (Tim Hitchcock)
Newsgroups: comp.dcom.lans
Subject: Re: Long distance Ethernet Bridges
Message-ID: <2423@mibte.UUCP>
Date: Sat, 5-Dec-87 11:10:16 EST
Article-I.D.: mibte.2423
Posted: Sat Dec  5 11:10:16 1987
Date-Received: Thu, 10-Dec-87 19:44:01 EST
References: <198@m2.mfci.UUCP> <2264@Shasta.STANFORD.EDU>
Organization: Michigan Bell Telephone Company
Lines: 22
Keywords: gateways, bridges

In article <2264@Shasta.STANFORD.EDU>, satz@Shasta.UUCP writes:
> In article <198@m2.mfci.UUCP> bronson@mfci.UUCP (Tan Bronson) writes:
> >
> >We are using Sun's Sunlink Internet Router with some 4800 synchronous modems
> >to connect two ethernet networks 4.1 miles apart. We're currently using a 3002
> >line and this ok, but it's a bit slow.
> >    Does anyone know of reverse multiplexing boxes which would allow
> >us to use multiple 9600 baud lines, to get a total agrregate through put
> >greater than 9600 baud ?
> 
> A number of companies make stand-alone level 3 gateways that will
> load-share across multiple links.
> 
> Greg Satz
> cisco Systems

It is expensive, but you may want to check out AT&T's ISN
(Information Systems Network, not to be confused with ISDN).

It will bridge 10 MBPS Ethernets (as well as Starlan, Asyn and Sync)
over local or wide areas. You can use unshielded twisted pair or fiber.
At < 5 miles you can run fiber to get ISN throughput of 5.6 MBPS.