@KK
It turns out I made a wrong assumption. I thought that when an
ofp_flow_mod (OFPFC_ADD) message was sent, it returns a reply with the
same xid. After looking at the OF protocol, it looks like a message is
only sent back if an error occurred.
@Rob
The cookie isn't quite what I'm looking for, I'm not sure what it might
be used for in the future...
Basically, I'm looking for a way to validate that adding a flow worked.
Consider the following cenario:
There are two components: A & B
1. A sends a request to add a flow.
2. B sends a request to add the exact same flow.
3. B's gets added first and is successful.
4. A received a flow mod event and thinks its flow was added.
5. A's flow gets added. It conflicts with B's flow and generates an error.
6. A sees an error for his exact flow and doesn't know if it's flow was
added or another component's.
-Derek
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