CODEWITHSUNDEEP
openflowmininetpox
Daniel
Daniel

Reputation: 440

flow entry with empty actions set in Mininet with more than one switch and POX controller


I'm using Mininet and POX controller. The network topology has multiple switches. Whenever I install flow for some switch, and afterwards I check the flow table in that switch, its actions set is empty. dump-flows shows actions= However, when there's only one switch in the network, the actions set is not empty. What may be the reason for the actions set being empty ?

Thank you

Upvotes: 1

Views: 1225

Answers (1)

Daniel
Daniel

Reputation: 440

After looking in OpenFlow specifications again, I learned that an empty actions set in a flow entry is a drop flow.

From OpenFlow Switch Specifications v1.3.1

Drop. There is no explicit action to represent drops. Instead, packets whose action sets have no output actions should be dropped.

Afterwards, I realized where was the error in the code which made the incorrect flow entry installed.

Upvotes: 2

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