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From: WITLICKI@WILLIAMS.BITNET.UUCP
Newsgroups: mod.computers.vax
Subject: Re:  IBM-VAX connections
Message-ID: <8702262134.AA02682@ucbvax.Berkeley.EDU>
Date: Thu, 26-Feb-87 17:03:16 EST
Article-I.D.: ucbvax.8702262134.AA02682
Posted: Thu Feb 26 17:03:16 1987
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From Glenn L. Vanderburg:
>The only thing I know of is jnet....
>
>The big problem is that the only other driver they supply is for an asynch
>connection which is terribly slow...
 
   jnet supports two types of links:
           - binary synchronous communication (BSC) lines
           - DECnet virtual circuits
   the BSC links can be over a DMF32 sync port at up 19,200 baud or
over a DUP11 at up to 9600 baud.
 
   if you are talking locally this certainly can be a bottleneck,
but if you are an educational institution going out over BITNET,
then you have to realize that most of BITNET talks over 9600 baud
leased phone lines and getting a file or message to an adjacent
node at DECnet link speed will only result in it queueing up there
before going out at 9600 baud.
 
- randy