Hi All,
I am trying to understand how the ryu plugin works with the quantum framework
of OpenStack. For that purpose I have studied some code but have few quick
questions. It seems that the ryu plugin has a driver that uses OFPclient to
pass commands to the REST API server:
1) What does the REST API do with the passed commands (Where can I find its
code?). Before looking at the code, I had the perception that nova-client or
other services that may want to make use of quantum plugin would make RESTful
calls to the plugin and then plugin would implement those calls.
2) What exactly does the quantum agent do ? It seems to be creating a binding
between networks, ports and VIFs but I am not sure.
3) Ryu agent seems to be working on hypervisors only. Don't we need to
install the agent on physical switches? If not, how beneficial is it to
use OF controller with Vswitch? I mean can't we directly manipulate the
OVS using ovs-vsctl or dptcl etc. ?
Please help me understand the Ryu functioning.
Thanks,
Salman
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