Learning OpenStack Networking - Third Edition

Reviewing the topology

Logically speaking, a distributed virtual router is a single router object connecting two or more project networks, as shown in the following diagram:

In the following example, a distributed virtual router named MyDistributedRouter has been created and connected to two project networks: BLUE_NET and RED_NET. Virtual machine instances in each network use their respective default gateways to route traffic to the other network through the same router. The virtual machine instances are unaware of where the router is located.

A look under the hood, however, tells a different story. In the following example, the blue VM pings ...