A.224.0.0.0/24 B.239.128.0.0/10 C.239.192.0.0/14 D.224.0.1.0-238.255.255.255
A. autonomous-system 64555;confederation 1111 ; B. autonomous-system 64555; confederation 1111 members [ 64555 64777 ]; C. confederation 64555; autonomous-system 1111 members [ 64555 64777 ]; D. sub-autonomous-system 64555; confederation 1111 members [ 64555 64777 ];
A. You can reach other Level 2 routers. B. It can reach at least one other defined area. C. The router is reachable by at least two ES-IS nodes. D. It has at least one enabled reachable prefix with a valid metric defined.