The switch configuration messages are used by the controller to set and get switch configuration parameters.
The OpenFlow specification defines the following three switch configuration messages:
OFPT_SET_CONFIG
: This message is sent from the controller to configure the switch. Typically this message is sent from the controller upon a successful connection establishment and after identifying the switch's features using theOFPT_FEATURES_REQUEST
message.OFPT_GET_CONFIG_REQUEST
: This message is sent from the controller to get configuration information from the switch. This message can be sent from the controller at any time.OFPT_GET_CONFIG_REPLY
: This message is the reply message sent from the switch for theOFPT_GET_CONFIG_REQUEST
message.
The controller can configure the following parameters in the switch:
- The maximum bytes of data that the switch should send to the controller while sending the buffered packets.
- IP fragmentation related...