Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 16 May 1997 15:48:29 -0500 (CDT)
From:      Mark Tinguely <tinguely@plains.nodak.edu>
To:        black@zen.cypher.net, sthaug@nethelp.no
Cc:        hackers@FreeBSD.ORG
Subject:   Why use ATM, (was Cluster Computing in BSD)
Message-ID:  <199705162048.PAA19763@plains.nodak.edu>

next in thread | raw e-mail | index | archive | help
Steinar Haug says:
> I haven't seen any sign of inexpensive 155 Mbps ATM NICs, why do you
> think inexpensive 622 Mbps ones are coming soon?

they are coming down in price, but not nearly low enough to be mainstream.
the cheapest cards are the ones that use host memory for packet segmentation
and re-assembly. I wish I had a performance study to see how much speed
is lost using host memory for SAR operations.

Ben Black asks:
>  and why would you want to use something as inefficient as ATM for a 
>  cluster interconnect?

in-efficiency is not a concern problem IF the end result is faster than
anything else on the market. ATM, lost that window of opportunity and today
is not the fastest thing on the market because everone wants IP. I think even
Sonet PPP/frame relay will upstage ATM.

yeah, this prob. belongs in -chat or -atm.

--mark.



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199705162048.PAA19763>