DAST: Iperf - Iperf - notnesk --at-- broadpark.no
>Date: Sun, 26 Jun 2005 20:05:09 -0500
>To: notnesk --at-- broadpark.no
>Subject: DAST: Iperf - Iperf - notnesk --at-- broadpark.no
>
>
>Contacting DAST re: Request for information about Iperf
>From: Kristian Nøtnes <notnesk --at-- broadpark.no>
>
>Subject: Iperf
>
>Question/Comment:
>Hello.
>I am doing my master thesis this semester. I am using Iperf to measure the
bandwidth of a wireless network. I am using two machines and two routers
that are wireless, these to routers can form one network with one of them
as the gateway. There is one machine attached each of the routers. My
problem is that I get some measurements that I do not understand. TCP is
self explaining, but the UDP do I have some problems with.
>
>I am trying to send 30Mb thru the network with this cmd:
>iperf -c 192.168.2.x - u - b 30m
>And then I get this at the client side:
>------------------------------------------------------------
>Client connecting to 192.168.2.132, UDP port 5001
>Sending 1470 byte datagrams
>UDP buffer size: 64.0 KByte (default)
>------------------------------------------------------------
>[ 3] local 192.168.2.185 port 32771 connected with 192.168.2.132 port 5001
>[ 3] 0.0-10.0 sec 35.8 MBytes 30.0 Mbits/sec
>[ 3] Sent 25512 datagrams
>[ 3] Server Report:
>[ 3] 0.0-10.0 sec 71.5 MBytes 60.0 Mbits/sec 0.280 ms 9/25502
(0.035%)
>[ 3] 0.0-10.0 sec 1 datagrams received out-of-order
>
>My problem is: I do not understand what the server is reporting. Is the
server trying to do the same as the client is or what is the "Server
Report"? Do the server also trying to send the 30Mb thru the network but
the opposite way?
>
>Thanks
>Kristian
>
>
>
--
Mitch Kutzko | mitch --at-- dast.nlanr.net | mitch --at-- ncsa.uiuc.edu | 217-333-1199
http://hobbes.ncsa.uiuc.edu/