Home » HP » HP2-Z31 » What happens to an incoming packet that does not have a match in any of the Open Flow tables on an HP Provision switch that operates in passive mode?
What happens to an incoming packet that does not have a match in any of the Open Flow tables on an HP Provision switch that operates in passive mode?
A. The packet is forwarded using legacy forwarding mechanisms.
B. The packet is forwarded to the HP VAN SDN Controller.
C. The packet is sent to the control plane of the switch.
D. The packet is dropped.
Correct Answer: A
Explanation/Reference:
Explanation: OpenFlow instance mode
OpenFlow can work either in active or passive mode.
Passive mode
There is one-way communication from the OpenFlow controller to the switch. Packets that do not match any flow in the flow table on the switch are not sent to the controller. Such packets of new flows are handled normally by the switch (that is using legacy forwarding mechanisms).
Active mode
New packets of a flow that the switch is not aware of are sent to the OpenFlow controller.
Reference: HP Switch Software OpenFlow Administrator’s Guide K/KA/WB 15.14
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