Shulou(Shulou.com)06/01 Report--

We studied SDN and used Floodlight V1.2 and DELL S3048 to connect. We always disconnected the handshake. Later, we grabbed the packet and found that the table_feature_reply message was empty, and the message would not be sent after using other controllers to find that the handshake was successful. So we changed the handshake process of floodlight:

Find the sendHandshakeTableFeaturesRequest function in the net.floodlightcontroller.core.internal.OFSwitchHandshakeHandler file, comment the original code, and add setState (new WaitInitialRoleState ()); this line is fine

The changed code is:

Private void sendHandshakeTableFeaturesRequest () {

/ / OFTableFeaturesStatsRequest tfsr = factory.buildTableFeaturesStatsRequest ()

/ / * leave entries blank-- > just ask, don't set * /

/ / .setXid (handshakeTransactionIds--)

/ / .build ()

/ / mainConnection.write (tfsr)

SetState (new WaitInitialRoleState ())

}

If you have the same problem, you can try it.

University of Electronic Science and Technology

Hu Liwei

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