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Cisco Bug: CSCuj44931 - MAC flows getting installed for unsupported match & action parameters

Last Modified

Mar 04, 2017

Products (1)

  • Cisco Plug-in for OpenFlow

Known Affected Releases

1.1(0.78)

Description (partial)

Symptom:
The Mac Forwarding Table flows are all configured as static entries and all the flows have the same priority. Also, the mac table supports exact matching on the destination mac address and the vlan ID, and the only actions supported are drop and output to port. 
However the Openflow Agent will accept flow add/modify messages for the mac flows with configurations for the flow priority and the idle/hard timeouts, and matching on other fields. These invalid matches/actions are ignored and the flow is still installed in the mac table with only the correct supported attributes.

Conditions:
This is seen when the openflow switch is configured with pipeline 202. And flow add messages include unsupported matches and actions like setting the flow priority, setting the idle/hard timeouts, matching on IP src/dest address,  TCP/UDP protocol, TOS, L4 src/dest ports etc.
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