Changes between Initial Version and Version 1 of GENIExperimenter/Tutorials/NFV/Ryu/LoadBalanceRRwithRyu

Timestamp:

10/19/16 16:49:45 (8 years ago)

Author:

wyf@bu.edu

Comment:

--

GENIExperimenter/Tutorials/NFV/Ryu/LoadBalanceRRwithRyu

@@ +1 @@
+= Experiment 1: Load Balancing using Round Robin Control with Ryu Controller = 
+
+== Overview == 
+In this experiment, we will look at a Round Robin load balancer for a VNF Snort application. Snort will be running as IDS on VNF1 and VNF2 and we will try to balance the load across the two VNF instances by directing each new flow request to one of the two VNF instances in a round robin fashion. 
+ 
+
+We will use the ''Netcat'' application to generate traffic between a source and destination. Netcat is a useful application for network debugging and investigation. It is used for reading from and writing to network connections using TCP or UDP. In other words, it is like talking on the phone. One node talks,  and another one, on the other side, listens and talks back. Using netcat, you can see the communication between a source and destination.
+
+
+'''Note: another version of this experiment using POX controller can be found at [wiki:GENIExperimenter/Tutorials/NFV/Execute/LoadBalanceRR here].
+
+== Instructions == 
+=== 1.     Open the ''controller'' window and execute the following: ===
+
+         - '''nano ~/ryu/ryu/app/nfv.conifg''' [[BR]]
+and change the controller_type to '''RR'''.
+
+
+ === 2.     Run the NFV_controller in the ''controller'' window: ===
+           - '''~/ryu/bin/ryu-manager --verbose ~/ryu/ryu/app/nfv_controller.py'''
+
+ 
+ === 3.    Open the ''VNF1'' and ''VNF2'' windows and run Snort IDS on each of the VNFs as shown below: ===
+
+           - ''' sudo /usr/local/bin/snort -A full -dev -i eth1 '''
+
+ You should see the window shown below on the ''VNF1'' and ''VNF2'' windows.
+{{{
+#!html
+<img src="http://csr.bu.edu/rina/grw-bu2016/nfv_ryu/pics/snortPic.png" hspace=5>
+ }}}
+
+ === 4.     In the destination window, run the netcat server: === 
+
+        - ''' nc -u -l 5000 '''
+
+ 
+ === 5.     In the ''s1'' window, run the netcat client to send traffic to the ''destination'' node: === 
+       
+       - '''nc -u destination 5000''' 
+
+
+ === 6.     Type something on the ''s1'' window and you should see it on the ''destination'' window.  ===
+
+Now if you look at the ''VNF1'' and ''VNF2'' windows running Snort IDS, you could see packets arriving at the VNF1 and VNF2 nodes in a Round Robin fashion. An example of such an output is shown below on the VNF window running Snort IDS.
+
+{{{
+#!html
+<img src="http://csr.bu.edu/rina/grw-bu2016/nfv_ryu/pics/nfvPic.png" hspace=50>
+ }}}
+
+In the ''controller'' window, you can see that the controller chooses VNF1 and VNF2 in a Round Robin fashion as shown below:
+
+{{{
+#!html
+<img src="http://csr.bu.edu/rina/grw-bu2016/nfv_ryu/pics/RRPic.png" hspace=50>
+ }}}
+
+
+{{{
+#!html
+<table id="Table_02" width = "700" border="0" cellpadding="0" cellspacing="10" >
+ <tr> 
+<td> <img src = "http://csr.bu.edu/rina/grw-bu2016/tutorial_files/image022.gif"> </td>
+<td> <b>OPTIONAL: Review the RR Controller Code</b> </td> </tr></table>
+}}}
+ The Round Robin code is based on the following algorithm:
+
+{{{
+#!html
+<img src="http://csr.bu.edu/rina/grw-bu2016/tutorial_files/image054.gif" hspace=50>
+ }}}
+
+== Next Experiment ==
+'''[wiki:GENIExperimenter/Tutorials/NFV/Ryu/LoadBalancePIwithRyu Experiment 2:  Load Balancing using Proportional Integral (PI) Control with Ryu Controller]'''[[BR]]
+