Flow table modification messages restrictions

The flow table modification messages have the following restrictions for the table-miss flow entry and common flow entries:

• Table-miss flow entry

  • The controller deploys the table-miss flow entry (the action is Drop) to an OpenFlow instance after the OpenFlow instance is activated.

  • The controller cannot query the table-miss flow entry through Multipart messages.

  • The controller cannot modify the table-miss flow entry through the Modify request. The controller can only modify the table-miss flow entry through the Add request.

  • The controller can modify or delete the table-miss flow entry only through the strict version of the Modify or Delete request. The controller cannot modify or remove the table-miss flow entry through the non-strict version of the Modify or Delete request despite that the match fields are wildcarded.

• Common flow entries

  The controller cannot modify or remove all common flow entries through the non-strict version of the Modify or Delete request despite that the match fields are wildcarded.