After upgrading our kolla-ansible clusters from Queens to Train, we are seeing static routes when we create subnets. We didn’t see this in Queens. For example, in our de6 region we have a network called “trust” with 3 subnets: Subnet CIDR Gateway trust-az1: 10.52.160.0/22 10.52.160.1 trust-az2: 10.52.164.0/22 10.52.164.1 trust-az3: 10.52.168.0/22 10.52.168.1 Each of these subnets has 2 entries under “host_routes:” that point to the other two subnets. For example, subnet trust-az1 has these two routes: host_routes | destination='10.52.164.0/22', gateway='10.52.160.1' | | | destination='10.52.168.0/22', gateway='10.52.160.1' | How can we prevent these host routes from being created in Train? Do we need to change something in our config?