mark@jarthur.Claremont.EDU (Mark Anderson) (03/11/91)
I hope that these are appropriate groups and apologize in advance if I have missed a FAQ somewhere with this one in it. I need everything I can find on the DEC LAT protocol. DECNET stuff would also be nice, but not as important. I realize that it is a licensed product of Digital Equipment Company, but was hoping to find some sort of primer for the protocol available without having to license the right to use from DEC. The reason I need this is that am trying to write a program to measure among other things the load on an ethernet caused by terminal servers, and the data flow rate that is sent. For this I would like to be able to examine ethernet packets and measure the character rate (data flow) for several different protocols. Telnet and rlogin are easy to find information on, but we also are running DEC LAT servers on our network. I would like to be able to look at ( and partially decode ) these packets as well, so I can get a measurement of the comparative throughput (per login) that we are actually getting. I know that this is a tricky thing to do, and I'm probably doing to much work for too little use, but it's worth a shot. Any pointers, references or anything would be welcome. Thank you. Mark A. Anderson mark@jarthur.claremont.edu Computer Science Department uunet!jarthur!mark Harvey Mudd College Claremont, CA 91711
henry@zoo.toronto.edu (Henry Spencer) (03/13/91)
In article <11158@jarthur.Claremont.EDU> mark@jarthur.Claremont.EDU (Mark Anderson) writes: >I need everything I can find on the DEC LAT protocol. DECNET stuff would >also be nice, but not as important. I realize that it is a licensed product >of Digital Equipment Company, but was hoping to find some sort of primer for >the protocol available without having to license the right to use from DEC. Unless things have changed lately, even the protocol specs are proprietary. -- "But this *is* the simplified version | Henry Spencer @ U of Toronto Zoology for the general public." -S. Harris | henry@zoo.toronto.edu utzoo!henry
jms@mrsvax.mis.arizona.edu (Joel M Snyder) (03/13/91)
In article <11158@jarthur.Claremont.EDU>, mark@jarthur.Claremont.EDU (Mark Anderson) writes... > >I need everything I can find on the DEC LAT protocol. DECNET stuff would >also be nice, but not as important. I realize that it is a licensed product >of Digital Equipment Company, but was hoping to find some sort of primer for >the protocol available without having to license the right to use from DEC. > LAT is licensed, and no specifications are available. However, the protocol would be simple to figure out given your needs (i.e., you just need to say "hey, that's a LAT packet!" and don't need to emulate it). The DECnet specs are not private, and can be purchased from Digital: Version - Title - Order Number IV General Description AA-N149A-TC 4.0 DDCMP AA-D588A-TC 4.1 DDCMP AA-K176A-TK 1.0 Ethernet DL Func Spec AA-Y298A-TK 1.0 Ethernet Product Arch Spec AA-X440A-TK 2.0 Routing Layer Func Spec AA-X435A-TK 3.2 NSP Func Spec AA-K176A-TK 4.0 NSP Func Spec AA-X439A-TK 1.0 Session Control Func Spec AA-K182A-TK 5.6 DAP Func Spec AA-K177A-TK 2.0 NVT Foundation Services AA-DY89A-TK 2.0 NVT CTERM AA-DY88A-TK 4.0 Net Mgmt Func Spec AA-X437A-TK 3.0 MOP Func Spec AA-X436A-TK 2.0 Ethernet (the blue book) AA-K759B-TK jms Joel M Snyder, The Mosaic Group, 627 E Speedway, 85705 Phone: 602.626.8680 (University of Arizona, Dep't of MIS, Eller Graduate School of Management) BITNET: jms@arizmis Internet: jms@mis.arizona.edu SPAN: 47541::uamis::jms "It's all just bits, anyway." - Kevin Lynch, on computers and databases