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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. The transmission frequency of Echo Request and Packet_in
   a) The default Echo message transmission frequency of IXIA tester is 10 s/p per switch
   b) The Packet_out message transmission frequency of IXIA tester was seted as 20 s/p per switch
3. Environment
   This test result depends on the test environment, the results measured in different environments will be very different, in the VM environment and the physical environment the results of the test difference of nearly 10 times.

Preparation

• Cluster formed(Three nodes)

   

  $ $ONOS_INSTALL_DIR/bin/onos-form-cluster OC1 OC2 OC3

• Features install

   

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

...

• onos> feature:install onos-app-fwd

Test steps

      1. Config IxNetwork with multiple switches equally by four ports (first time with 500(single mode) or 100(cluster mode))100), set the packet_in messages of the switch 20 packets per switch per second, using ICMP or ARP packets.

      2. Start the controller with the features install.

      3.  Start the capture of IxNetwork ports.      4. Start all of the Start the OF protocol of the switches simultaneousswitch.

      54.  Wait Wait until all of the channels are channel is established and Echo message interaction started，then stop the capture.If all of the sessions can't be established in 5 minutes means the controller can't support those OF channelsstarted.

      5. Enable packet_in, wait until the packet_in messages and packet_out messages stable.

      6. If step 5 is successful, then wait for 5 minutes and check whether the established channels are stable without any flap, and the Echo messages sended are equal with received.  Start the capture of IxNetwork for 2-5 minutes.

      7. If step 6 has passedStop the capture, analyse the establish time from the messages captured by four ports and write down the resultmessages captured. First of all, select N1 numbers of  switch from those of switches through discrete way, then select N2 sets of packets of each switch by discrete way, third calculate the average of all of those packets pairs.

      8. Clean  Clean the configuration of controllers and IxNetwork.

      9. Repeat the test with same switches for three times.       10. Restart  Restart the test with another number of switches.

Test Results