{ "address_types": [ "ipv4", "ipv6" ], "ipv4base": "10.0.0.0", "ipv4mask": 30, "ipv6base": "fd00::", "ipv6mask": 64, "link_ip_start": { "ipv4": "10.0.0.0", "v4mask": 30, "ipv6": "fd00::", "v6mask": 64 }, "lo_prefix": { "ipv4": "1.0.", "v4mask": 32, "ipv6": "2001:db8:f::", "v6mask": 128 }, "routers": { "r1": { "links": { "lo": { "ipv4": "auto", "ipv6": "auto", "type": "loopback" }, "r2-link0": { "ipv4": "auto", "ipv6": "auto" }, "r2-link1": { "ipv4": "auto", "ipv6": "auto" }, "r3-link0": { "ipv4": "auto", "ipv6": "auto" }, "r3-link1": { "ipv4": "auto", "ipv6": "auto" } } }, "r2": { "links": { "lo": { "ipv4": "auto", "ipv6": "auto", "type": "loopback" }, "r1-link0": { "ipv4": "auto", "ipv6": "auto" }, "r1-link1": { "ipv4": "auto", "ipv6": "auto" }, "r3": { "ipv4": "auto", "ipv6": "auto" } }, "bgp": { "local_as": "100", "address_family": { "ipv4": { "unicast": { "neighbor": { "r3": { "dest_link": { "r2": { "keepalivetimer": 1, "holddowntimer": 4 } } } } } }, "ipv6": { "unicast": { "neighbor": { "r3": { "dest_link": { "r2": { "keepalivetimer": 1, "holddowntimer": 4 } } } } } } } } }, "r3": { "links": { "lo": { "ipv4": "auto", "ipv6": "auto", "type": "loopback" }, "r2": { "ipv4": "auto", "ipv6": "auto" }, "r1-link0": { "ipv4": "auto", "ipv6": "auto" }, "r1-link1": { "ipv4": "auto", "ipv6": "auto" } }, "bgp": { "local_as": "200", "address_family": { "ipv4": { "unicast": { "neighbor": { "r2": { "dest_link": { "r3": { "keepalivetimer": 1, "holddowntimer": 4 } } } } } }, "ipv6": { "unicast": { "neighbor": { "r2": { "dest_link": { "r3": { "keepalivetimer": 1, "holddowntimer": 4 } } } } } } } } } } }