Cell Relay Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Re: What PC 155/622 Mb ATM Card to buy ???
Henry Yen wrote: > In article <35B33DD5.76DD1F71@odot.dot.ohio.gov>, > Spencer Wood <swood@odot.dot.ohio.gov> wrote: > >Tom Lawrence wrote: > >> > Does anyone have some good experiences with a PC 155 Mb or 622 Mb > >> > ATM Card , to work with Cisco LS-1010 and Cat5000. > >> Why would you want a 622Mb card for a PC? > >I wouldn't think you could get a PC to actually be able to transfer at > >622mb........I remember reading a review about 100mb cards that on a > >Pentium Pro server with a 100mb Full Duplex card, it would take > >something like 80% of the CPU to run the card flat out (Full Duplex, > >100mb)... > > what operating system/environment was that? ftp.cdrom.com, running > freebsd, serves over 9 trillion Bytes/month to over 2 million > sessions/month; this system runs on a single pentium pro system > connected to a 100Mb fast ethernet. considering it is connected > to 4 scsi controllers controlling 32 disk volumes, i would think > that this system doesn't run at 80% (it allows up to 3200 simultaneous > ftp sessions, and is connected to "multiple" DS3 and OC3 circuits > by virtue of being colocated in CRL's network). > Windows NT was the test subject, but I think the same applies to Netware... You could probably get closer to OC-12 speeds if you were connection a High-End Sun Server, SGI Server, or Highend IBM Mainframe, but that would be about it..... My guess ftp.cdrom.com is actually a collection of servers to allow for fast connections and let downtime, but I could be wrong.. -- **************************************************************************** Spencer Wood, Network Administrator E-Mail: Spencer.Wood@dot.state.oh.us Ohio Department Of Transportation Phone: 614.644.5422 1320 Arthur E. Adams Dr. Fax: 614.644.3851 Columbus, Ohio 43221 **************************************************************************** |
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