When a the switch receives a modify request message from the controller to modify the state of a group or meter entries, after successful modification of the state, the switch should forward this request message to all other controllers as a request forward message (OFPT_REQUESTFORWAD
). The switch should send this message only to the controller channel in which the controller requested the switch to send this event. The controller can express its interest to receive this event by sending an asynchronous configuration message to the switch. Refer to the Configuring the switch to send a list of asynchronous events the controller channel is interested in recipe in Chapter 2, Symmetric Messages and Asynchronous Messages (Part 2), for the procedure to configure the switch to send a request forward message to the controller.
OpenFlow Cookbook
OpenFlow Cookbook
Overview of this book
Table of Contents (17 chapters)
Preface
Free Chapter
1. OpenFlow Channel Connection Establishment (Part 1)
1. OpenFlow Channel Connection Establishment (Part 2)
2. Symmetric Messages and Asynchronous Messages (Part 1)
2. Symmetric Messages and Asynchronous Messages (Part 2)
3. Flow Table and Flow Entry Modification Messages (Part 1)
3. Flow Table and Flow Entry Modification Messages (Part 2)
4. Group Table and Meter Table Modification Messages (Part 1)
4. Group Table and Meter Table Modification Messages (Part 2)
5. Handling Multipart Statistics Messages (Part 1)
5. Handling Multipart Statistics Messages (Part 2)
6. Handling Multipart State Information Messages (Part 1)
6. Handling Multipart State Information Messages (Part 2)
7. Handling Bundle Messages (Part 1)
7. Handling Bundle Messages (Part 2)
A. Common OpenFlow Headers, Structures, and Error Code
Index
Customer Reviews