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Thread View: comp.protocols.ppp
2 messages
2 total messages Started by Dave St.Clair Mon, 11 Jan 1993 20:10
Using Sybase over PPP with Solaris 1.1
#263
Author: Dave St.Clair
Date: Mon, 11 Jan 1993 20:10
38 lines
1941 bytes
Well this should have been simple but .... :-)

Ok, we have the need to connect two machines/networks over a WAN and would
like to be about to access our Sybase 4.8 database.  Since this WAN is over
standard phone lines (not leased lines), I looked for a version of PPP that
would do dialup-on-demand.  I found Kirk Smith's dp2.2 by checking the
comp.prototocols.ppp FAQ.

I setup two SparcStations with MultiTech MultiModems to test things.  First
I verified that Sybase worked OK with a normal (le0) ethernet connection.
Worked just fine. Next I installed PPP, unplugged the thin net and turned
on the modems.  Talk about simple!  Had the serial link up and going inside
of an hour (had to take into account silly setup errors :-)).

First I checked the basics: rlogin, telnet, ftp, mail, ping, etc.  No problem.
Works like charm.  Now I give Sybase a try.  And here's the results:

	./isql
	Password: 
	Operating-system error:
        	Connection refused
	DB-LIBRARY error:
        	Unable to connect: SQL Server is unavailable or does not exist.


I checked for user permissions, etc,  but to no avail.

Any hints?

I've been talking to Sybase support but most of the people I've talked to
have not even heard of PPP.  In the latest round, my contact said Sybase
did not have the resources to "support" another third party product. But she
said she would try one more time to find someone in Sybase who could at
least spell PPP :-)

Thanks,

dave@exlog.com
Re: Using Sybase over PPP with Solaris 1.1
#264
Author: Bob Sutterfield
Date: Tue, 12 Jan 1993 03:57
17 lines
1361 bytes
In article <1993Jan11.201055.29189@exlog.com> dave@exlog.com (Dave St.Clair) writes:
   Operating-system error:
	   Connection refused
   DB-LIBRARY error:
	   Unable to connect: SQL Server is unavailable or does not exist.

Does Sybase impose some connection establishment timeout that's too
optimistic for use over relatively low-bandwidth, high-latency IP
links?  Is that timeout configurable?

In a possibly-related vein, I'd expect it to be more accomodating (and
yield higher performance in a dialup environment) if it uses TCP
streams than if it uses UDP datagrams.
--
Bob Sutterfield, Morning Star Technologies            +1 614 451 1883
1760 Zollinger Rd, Columbus Ohio USA, 43221           +1 800 558 7827
bob@MorningStar.Com                                   +1 614 459 5054 (FAX)
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