X.25 on a NCR Tower

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2 total messages Started by Steve Converse Sat, 17 Oct 1987 00:35

#722

Author: Steve Converse
Date: Sat, 17 Oct 1987 00:35

11 lines
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I may be installing X.25 on our NCR Tower.  Can anyone advise me of
problems associated with the X.25 package that NCR sells?  My employer
is especially interested in the system performance degradation we can expect.
Since I'm no longer at this Usenet address, please send replies to 
Steve Converse at Computer Consoles:

converse@rlgvax

Thanks.  

George Skillman  (Intertek Services International)

Re: X.25 on a NCR Tower

#724

Author: Robert Heath
Date: Sat, 17 Oct 1987 15:42

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George,
	Having been involved with X.25 development on the TOWER, I
can say that you shouldn't notice any general system performance 
degradation due to addition of X.25.
Compared to disk or tape activity, the X.25 steals very little from
other processes.  The link level stuff is offloaded by a fairly smart
comm processor, while the packet level runs as an application.

The programmatic interface to the X.25 packet layer is somewhat difficult 
to understand. On the other hand, most people use it with
PAD or SNA packages, and don't see that interface.

For a write-up on the TOWER X.25 PAD product, see my article in 
the Feb. '87 issue of Data Communications magazine.
	Robert Heath
	heath@ncrcae.UUCP
	heath@ncrcae.Columbia.NCR.COM

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