more throughput if using more interfaces per machines ?

To: iperf-users --at-- dast.nlanr.net
Subject: more throughput if using more interfaces per machines ?
From: nirav jasapara <jasapara --at-- usc.edu>
Date: Sun, 08 Feb 2004 19:25:13 -0800
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i am using machines each with 4 Intel 1000BT dual Ethernet cards .

1. When i connect two machines ( 1 interface each with a crossover) i gat a thr
oughput of 750 mbps. 

$> iperf -s
$> iperf IP -c

then when i connected all 4 interfaces with 4 interfaces of the other machines 
i was excepting 750*4 Mbps but i got the same 750 Mbps as throughput. What 
could
 be wrong ? how can i check if the server and client are both using all the 
four
 interfaces ?

2. While running the same test in UDP mode i got a bandwidth of 1.5 Kbps ? what
 could be wrong ?

- Nirav

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