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--- qos_project [2017/11/30 18:48] – [Extracts] samer
+++ qos_project [2017/11/30 19:02] – [6. [CO2] Implementing the Applications and Tools] samer
@@ Line 158: / Line 158: @@
 </file>
-===== -. [CO2] Implementing the Applications and Tools =====
-In order to describe and analyze the basic steps for installing and using the tools and client/server applications, we need to look carefully to these 4 applications: iperf, flent, VLC, HTTP.
-Let's start with the application iperf:
-- To activate iperf3:
-	    * On the server side: iperf3 -s
-	    * On the client side: iperf3 -c 192.168.200.192
-- To visualize UDP trafic with a specific bandwidth:
-	    * On the client side: iperf3 -c 192.168.200.192 -u -b 2M
-Here we set the bandwidth with UDP to 2Mbit/s.
-Note that by default ,UDP sets the bandwidth to 1Mbit/s
-- To extend the transmission time(second) as well as the number packets sent:
-	    * On the Client side: iperf3 -c 192.168.200.192 -t 15
-Note that  by default, iperf3 sets the time to 10 seconds
-- To reverse mode(server sends, client receives):
-	    * On the Client side: iper3 -c 192.168.200.192 -R
-- To end multiple flows:
-	    * On the Client side: iper3 -c 192.168.200.192 -P 2 -t 60
-Here we are sending 2 flows in 1 min(60 seconds)
-Note that we need to extend more the tx time in order to have similar throughput for the 2 flows so that we don't consider it as a fairness issue.
-Let's analyze flent application:
-            * On the Server side: netserver &
--To visualize one TCP stream:
-            * On the Client side:  flent tcp_upload -p totals -l 60 -H 192.168.200.192 -t title2 -o test2.png
--To visualize 12 TCP streams:
-            * On the Client side:  flent tcp_12up -p totals -l 60 -H 192.168.200.192 -t title3 -o test3.png
-===== Extracts =====
 The two routers allocate IP addresses using DHCP. In order to facilitate the usage of the platform, fixed allocations are configured for the end hosts. This is configured in ''/etc/config/dhcp'' on each router as in the following.
@@ Line 249: / Line 202: @@
 .168.200.0/24 dev eth0  proto kernel  scope link  src 192.168.200.192  metric                                                                                                                                                              202
 </code>
+===== -. [CO2] Implementing the Applications and Tools =====
+In order to describe and analyze the basic steps for installing and using the tools and client/server applications, we need to look carefully to these four applications: iperf, flent, VLC, HTTP.
+Let us start with the application iperf. In the following, we present a short tutorial on the main functions of the perf tool.
+  * To launch iperf3:
+    * On the server side: ''iperf3 -s''
+    * On the client side: ''iperf3 -c 192.168.200.192'', where 192.168.200.192is the IP address of the server.
+  * By default, the trafic sent by iperf uses TCP. In order to send UDP trafic with a specific bandwidth:
+    * On the client side: iperf3 -c 192.168.200.192 -u -b 2M
+Here we set the bandwidth with UDP to 2Mbit/s. Note that by default, UDP sets the bandwidth to 1Mbit/s.
+  * To extend the transmission time(second) as well as the number packets sent:
+     * On the Client side: ''iperf3 -c 192.168.200.192 -t 15''
+Note that by default, iperf3 sets the time to 10 seconds.
+  * To use reverse mode (server sends the trafic and client receives):
+    * On the Client side: ''iper3 -c 192.168.200.192 -R''
+  * To send multiple flows:
+    * On the Client side: ''iper3 -c 192.168.200.192 -P 2 -t 60''
+Here we are sending 2 flows in for one minute (60 seconds). Note that we need to extend more the tx time in order to have similar throughput for the 2 flows so that we don't consider it as a fairness issue.
+Let's analyze flent application:
+            * On the Server side: netserver &
+-To visualize one TCP stream:
+            * On the Client side:  flent tcp_upload -p totals -l 60 -H 192.168.200.192 -t title2 -o test2.png
+-To visualize 12 TCP streams:
+            * On the Client side:  flent tcp_12up -p totals -l 60 -H 192.168.200.192 -t title3 -o test3.png