Hi again Ray,

Thanks for the insight. I can definitely see the concern as far as the design 
of the network goes, and I definitely plan into looking into 
distributed/multiple controller solutions in the future! For now though, its 
ok. We are using this network as part of a research project and it is not going 
to be a production network by any means, so low resiliency/reliability and a 
single controller is OK in this situation.

Anyways, I was thinking the same thing as you: It seems I will have to disable 
STP + the default forwarding rules, and then write flows to get ARP, etc. 
working as intended. I just wanted to see if there was some other, simpler 
solution that perhaps I was missing here.

As far as your questions go: Our control channel is in-band, and we are running 
all OVS-only switches. It’s a pretty straightforward setup, but evidently now 
I’m not sure it quite fulfills our needs.

Also, can you explain how in-band control cause more issues for us, rather than 
less?

Thanks again!

Colton
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