KROON@HGRRUG51.BITNET (Peter A. Kroon. KVI) (11/06/86)
Is there anybody out there who is using the DEC product VAXELN? I would like you get in touch with you to exchange experiences and discuss problems. Peter A. Kroon, KVI, Groningen, Netherlands. KROON@HGRRUG51.BITNET
wiltzius@LLL-CRG.ARPA (Dave Wiltzius) (03/19/87)
Subject: VAXELN Newsgroups: mod.computers.vax Keywords: VAXELN,MicroPower/PASCAL,performance I'm interested in connecting a VAXELN VAX or MicroPower/PASCAL LSI-11 to an Ethernet for a real-time application. It will be communicating to a non-DEC peer, hence only datagrams (vs DECnet circuits) are to be used. Using Version 2.2 VAXELN, I am only able to receive approx. 2 Mbits/sec and send approx. 3 Mbits/sec (using 1400 byte packets). (Circuits give about 2.7 Mbits/sec for 32Kbyte messages.) Is this datagram performance the best I can expect? Also, I don't have a MicroPower/PASCAL available (I just heard of it recently). Anyone have any experience with it and how it compares to VAXELN - performance and software development-wise? Last of all, the VAXELN manual refers to a datalink interface (bypassing the NSP) defined in DATALINK.PAS - module $DATALINK in RTLOBJECT.OLB. This only defines the operational parameters and declares (but does not define) the 4 datalink routines. Can I in fact bypass the NSP without creating my own Ethernet driver? Can the datalink routines be used (and how)? Info and details would be much appreciated. Dave Wiltzius Lawrence Livermore Nat'l Lab wiltzius@lll-crg or wiltzius@lll-lcc or (415) 422-1551