Hi,

I'm a bit of a newbie so may not be the best to advise, but I think what you are trying to do (if I understand correctly) is possible, have you checked out Numan's write up here:

https://developers.redhat.com/blog/2018/11/08/how-to-create-an-open-virtual-network-distributed-gateway-router/

This shows you how to do east west with a distributed router, and then north south with a distributed gateway port, which can be bound to a specific chassis or scheduled in HA mode
across several chassis. I think this is what you are after.

Rdgs

Brendan


On 23/04/2020 12:11, Alexander Constantinescu wrote:
Hi all,

I am posting this here as I delved through the ovn-nb documentation for a couple of days without any bright ideas popping up.

I am trying to have north -> south and south -> north traffic for a logical_switch_port traverse a specific router gateway of my choosing. This means: I don't want external traffic in any direction for this logical_switch_port to pass through its pre-defined distributed gateway router.

Some background: the logical_switch_port that I would like this to be done for, is of type:"" (meaning it's connected to "A VM (or VIF) interface") and is connected to a distributed gateway router local to the node the logical_switch_port is hosted on. I have changed the type to "router" and defined "options: router-port=...", and this is where I lose insight as to:

- How to configure the router-port correctly so that external traffic for the logical_switch_port gets passed to it and properly routed afterwards
- If this is even the right approach?
- Is this possible to do only for north -> south / south -> north traffic. And thus keep east -> west and vice versa intact?

Any ideas are welcomed.

Thanks in advance!
/Alexander



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