...

1. If the OF sessions are restricted to 1000 or 1024, please check the following points:
   

   a) DPID configured by IxNetwork, they should exclusive with each switch.

   b) File descriptor of the OS which running the controllers(default with 1024).

   c)  ARP tables volume of the OS which running the controllers(default with 1024).

2. In order to test out the best performance of controllers, several ports of IxNetwork are suggested. In the test below, we used four ports to do the test, each ports with same number of switches, forexample, 500 switches test, we configed 125 switches each port.

Preparation

• Cluster formed(Three nodes)

  Code Block
  language text
  $ $ONOS_INSTALL_DIR/bin/onos-form-cluster OC1 OC2 OC3

• Features install

  Code Block
  onos> feature:install onos-drivers onos> feature:install onos-openflow onos> feature:install onos-openflow-base

...

      9. Restart the test with another number of switches.

Test Results

• Single Mode 

  Devices	First	Second	Thrid	Average
  500S	1.02	1.42	1.17	1.20
  1000S	2.13	2.18	2.03	2.11
  1500S	2.56	3.42	3.39	3.12
  2000S	4.74	4.42	4.86	4.67
  2500S	5.74	5.39	5.72	5.62
  3000S	6.38	7.54	7.61	7.18
  3500S	7.64	9.05	8.65	8.45

  After 3500 switches, the OF channels become unstable, the flap sessions come frequently with the increase of time. So the maximum number of OF Channel with single controller is 3500. 

  

  We can see from the histogram, the establish time is linear growth with the number of OF switches.

• Cluster Mode(Three nodes)

  Devices	First	Second	Thrid	Average
  100S	1.25	0.52	0.52	0.76
  200S	1.7	0.85	0.81	1.12
  300S	1.21	0.89	1.33	1.14
  400S	1.23	1.27	1.19	1.23
  500S	1.52	1.76	1.6	1.63
  600S	2.31	2.08	1.45	1.95

  

  To Be continued... 

   

   

   

...