Changes between Version 14 and Version 15 of Tutorials/g0WmLTE/Tutorial2

Timestamp:

Jul 4, 2012, 2:34:29 PM (12 years ago)

Author:

jeffrabi

Comment:

—

Tutorials/g0WmLTE/Tutorial2

@@ -84 +84 @@
  * ''app.measure('status_link')'' tells this application to use its predefined code to measure the 'status_link' property. OML will save these data for later. The exact behavior of this application is outside the scope of this discussion; suffice it to say that the implementation of the application is defined in the ''wimaxcu_app.rb'' and ''wmxstat'' programs mentioned previously.
 
+{{{
+  node.addApplication("test:app:iperf") do |app|
+    app.setProperty('udp', true)
+    app.setProperty('server', true)
+    app.setProperty('interval', "1")
+    app.setProperty('bind', "10.41.255.255")
+    app.measure('UDP_Rich_Info', :samples =>1)
+  end
+}}}
+
+ * As before, this application is contained in a subdirectory accessed through ''/test/app/''. 
+
+This adds the ''iperf'' application functionality to the group. ''iperf'' is an application which measures connectivity by sending data packets between groups. 
+
+''setProperty'' is fairly self-explanatory. It simply configures individual parameters germane to the operation of iperf.
+
+Here, ''app.measure'' is interesting because it is only one of the possible measurements that can be taken by the iperf app. For the others, see the ''iperf.rb'' code.
+
+{{{
+  node.exec('ifconfig', ['wmx0 10.41.14.1 netmask 255.255.0.0 up'])
+}}}
+
+''node.exec'' launches a program from the terminal. Specifically, this execution launches ifconfig and configure the WiMAX card manually. This is a useful demonstration of how to 'force' certain behavior from the nodes.
 ----
 == Launch Experiment ==