Description

      The purpose of the test is to measure the performance of OpenFlow controller channels with a single or cluster controllers. Multiple switches are setuped up by IxNetwork, and directly connected to controllers by TCP connection.   

      There are two items we should measure:

...

      2、The maximum number of OF channels can be support coinstantaneous by controllers.

      We measure the establish time by the time interval between the first Hello Message and the last Hello Message of these switches.The maximum number of OF channels measure by a time interval  without any session flap, and the time interval is recommended as 5 minutes.

      For single mode, we done the test repeated by different number of switches with the sequence of 500、1000、1500、2000 ……

      For cluster mode, we done the test repeated by different number of switches with the sequence of 100、200、300、400 ……

...