converse@rlgvax.UUCP (Steve Converse) (10/17/87)
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)
heath@ncrcae.Columbia.NCR.COM (Robert Heath) (10/17/87)
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