Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: Recommendations for oc3/oc12 adapters other than Fore
Mark Thomasson wrote: > Wondering what other vendors , other than Fore, offer Oc3/OC12 ATM adapters > for the server environment and what experiences any of you may have had with > them. > > I don't have anything against Fore.I just want get an idea of what else is > out there > > Mark Thomasson Mark, when we chose OC-3 cards for some PC-based radiological viewing stations, I mad a benchmark of Multimode Fibre cards from the following vendors: Olicom Fore 3COM The bencmark showed the ForeRunner LE cards to be superior for our purposes, communicating primarily with some Sun systems having SunAtm adapters. It achieved TCP throughputs of around 120 Mbps to the Sun Servers. The 3COM cards were not bad either, but the Olicom cards did not perform well with the Sun adapters (around 30 Mbps), while they were doing OK when communicating with Fore and 3COM cards. So we ended up using ForeRunner LE cards - something we have had no reason to regret as yet. On the Sun side we did not try anything else (I have no idea if there are any options) but we saw TCP throughputs with other Sun hosts with TCP throughputs of around 129 Mbps (CPU utilizations around 50-60%). The throughputs to the ForeRunners were around 120 Mbps on WinNT 4.0. The 129 Mbps is close to the theoretical limit for TCP on OC-3 - I think I calculated it to be around 99% of the theoretical limit. We are using Cisco LightStream 1010 switches. Regards, Jan Thomsen Project Manager |
|