4. update router gateway_ip to an IP address that can't be handled by the external network the router(s) are already attached to.
I think there needs to be some more explanation of how the routers on the compute node behave because it's not entirely clear to me that they will pick up the new default route.
First, I would modify comment #8 to say:
4. update router gateway_ip to an IP address that can't be handled by the external network the router(s) are already attached to.
I think there needs to be some more explanation of how the routers on the compute node behave because it's not entirely clear to me that they will pick up the new default route.