> Andrew Nance wrote:
>
> | It is hard to estimate but somewhere around 750 Kbps to 1.5 Mbps total
> | bandwidth.
>
> Almost anything fairly modern (ie: Pentium-class PCI based system) 
> should be
> able to handle this kind of bandwidth.  Even 486 based systems with EISA
> cards (should you actually be able to find one) could probably move this
> much data around.
> - --
> Charles Steinkuehler

On a Soekris net4801 with Bering 1.2 using a 100Mb/s switch and a 
8Mb/s cable modem I calculated almost 5Mb/s throughput on FTP. 
That is: 720MB CD transferred in 20 minutes == 36 MB in a minute 
== 0.6 MB in a second == 4.8 Mb/s. I guess a WRAP should 
behave close to this.

Not that this below is a very relevant piece of information since the 
packets were very big and packet count was low, but:

on the same Soekris wired with cross eth cables to one workstation 
on each side (no public connection) with 100Mb/s cards I fed the 
Soekris from one workstation with ping packets of 64Kbytes per 
second by increasing the number of simultaneous ping processes. 
On the target workstation I was observing the received throughput. I 
kept loading the Soekris/Bering with up to 42 streams, which makes 
roughly 42 Mb/s of bidirectional traffic. (1 packet sent per second; 
packet size 64KB * 8 = 512Kb; ping reply makes 2 x 512 Kb/s == 1 
Mb/s; 42 processes == 42 Mb/s).

More than 42 Mb/s produced a non-linear graph of the received 
traffic on the target workstation. 

Doing the same test on a commercial SOHO ethernet firewall/router 
caused the commercial router to colaps with overload at 4Mb/s, that 
is after the fourth simultaneous 64KB ping.

Tom


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