[ovs-discuss] OpenVSwitch looped topology without bonds/STP

[Colton Powell]

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