IPv6 Prefix Delegation configured between PE1 and, CE1 and CE2. PE1 is configured as the DR (Delegating Router). CE1 and CE2 are configured as RRs (Requesting Routers) providing IPv6 prefixes for their downstream hosts.
> GNS3: 3 x 3725s (Host routers), 3 x 7200s
> EVE-NG: 6 x IOS-XE 16.6.5s