Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!ucbcad!ucbvax!CRNLVAX5.BITNET!LF From: LF@CRNLVAX5.BITNET.UUCP Newsgroups: comp.os.vms Subject: Ethernet printers Message-ID: <8704180958.AA23435@ucbvax.Berkeley.EDU> Date: Sat, 18-Apr-87 00:45:00 EST Article-I.D.: ucbvax.8704180958.AA23435 Posted: Sat Apr 18 00:45:00 1987 Date-Received: Sun, 19-Apr-87 01:19:02 EST Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 45 From: BITNET%"GAYMAN%ARTIC.DECNET@ARI-HQ1" Received: From UBVM(MAILER) by CRNLVAX5 with RSCS id 6289 for INFOVAX@CRNLVAX5; Fri, 17 Apr 87 20:13 EST Received: by UBVM (Mailer X1.23b) id 6270; Fri, 17 Apr 87 20:12:09 EDT Date: 17 Apr 87 11:11:00 EDT Reply-To: "ARTIC::GAYMAN" Sender: INFO-VAX Discussion Comments: To: info-vax From: "ARTIC::GAYMAN" Subject: Ethernet printers To: CRNLVAX5 Bulletin Board > From: RTB "Bob Baynes" 16-APR-1987 14:41 > Subj: ETHERNET QUESTION > > In my experience Ethernet degrades at about 70% its bandwidth (i.e. > 7 mbytes). We are thinking of putting a C.Itoh printer on a > Decserver 200. My concern is that given the fact that we have three > systems (1 VAX 8600, 2 DEC-20s), 150+ users, 4 LN03 printers, and 1 > Imagen 8/300 (soon to be connected), placing a C.Itoh printer on the > terminal server will push us over the threshold of performance for > the network. > > The assumption is that the C.Itoh printer will print very LARGE > files that would have to be transferred between the DEC-20s and the > VAX. > > Can anyone give me any ideas or experience on Ethernet performance > with print servers ? > ------- > Our site has an 11/780, 11/785, 11/730, thirty-one servers, (DECSAs, DECserver 100s and DECserver 200s), and some 200+ users. We have seven terminal print queues connected to all of the servers mentioned and experience no performance problems on the Ethernet. Elizabeth Gayman (GAYMAN@ARI-HQ1.ARPA) ------ It's hard to believe someone is concerned over Ethernet load when the presentation I saw showed 467 nodes on the same Ethernet at DEC and the average load was 18% with peaks at 56%! -LF- Larry Fresinski (LF@CrnlVAX5.Bitnet)