ted@blia.sharebase.com (Ted Marshall) (04/19/91)
We are in the process of selecting a TCP/IP vendor for VAX/VMS for a special project. I am in the process of contacting the vendors for information but I have two questions that may be difficult to get answers for that I was hoping that the net could help with. The implementations I am looking at are: UCX from DEC (is this officially called the "VMS/ULTRIX connection" or are these two different products?); WIN/TCP from The Wollongong Group; Fusion TCP/IP from Network Research; and MultiNet TCP/IP from TGV. I already have a copy of CMU-TEK TCP but this project requires a commercially supported product. My basic requirements include: TCP and IP (supported by ARP and ICMP); Share DEC Ethernet interface with DECnet; Process-to-process TCP connections (other protocols and utilities desired but not required; socket library not required, QIO interface adequite); At least 200 simultaneous TCP connections to other hosts (given a large enough VAX). I believe that all of the implementations I've listed meet these requirement, possibly excepting the last. If anyone knows of other vendors, please feel free to suggest them. My two basic questions: (1) Does anyone know what the actual limit of simultaneous connections is for a given implementation. Or at least, conformation that an implementation can make it to 200. (2) Has anyone benchmarked any of the implementations against another? I am interested in performance of TCP and IP only. For example, Given two VAXen on an Ethernet, a small program on one feeding data to a small program on the other over TCP, how many KB per second? Please mail any information to "ted@airplane.sharebase.com". I will summarize the responses, along with anything I get from calling the vendors. Email from vendors is also welcome. Thanks in advance. -- Ted Marshall ted@airplane.sharebase.com ShareBase Corp., 14600 Winchester Blvd, Los Gatos, Ca 95030 (408)378-7000 The opinions expressed above are those of the poster and not his employer.