Anycast:
• RFC4610: Anycast-RP Using Protocol Independent Multicast (PIM).
• RFC1546: Host Anycasting Service.
• RFC2526: Reserved IPv6 Subnet Anycast Addresses.
• RFC3446: Anycast Rendevous Point (RP) mechanism using Protocol Independent Multicast (PIM) and Multicast Source Discovery Protocol (MSDP).