Hallo openvswitchlers,
I try to implement an OpenFlow controller with a special Update
algorithm, which is called WayUp and is discribed in this paper:
https://www.net.t-labs.tu-berlin.de/~stefan/hotnets14update.pdf .
My test environment consists of a mininet VM with ovs as switch and ryu
as controller.
The update consists of several rounds. Openflow messages of round n have
to be send to the switches and processed by the switch befor messages of
round n+1 can be send. That means a switch have to install a rule of
round n and forward packet according to this rule before the controller
can send messages of round n+1. The controller have to wait till the
switches install all rules. Can I use barrier requests to implement this
behavior? When is a barrier reply send exactly?
Best,
André
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