{
  "draft": "draft-ietf-v6ops-cidr-prefix-03",
  "doc_id": "RFC7608",
  "title": "IPv6 Prefix Length Recommendation for Forwarding",
  "authors": [
    "M. Boucadair",
    "A. Petrescu",
    "F. Baker"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "6",
  "pub_status": "BEST CURRENT PRACTICE",
  "status": "BEST CURRENT PRACTICE",
  "source": "IPv6 Operations",
  "abstract": "IPv6 prefix length, as in IPv4, is a parameter conveyed and used in IPv6 routing and forwarding processes in accordance with the Classless Inter-domain Routing (CIDR) architecture.  The length of an IPv6 prefix may be any number from zero to 128, although subnets using stateless address autoconfiguration (SLAAC) for address allocation conventionally use a /64 prefix.  Hardware and software implementations of routing and forwarding should therefore impose no rules on prefix length, but implement longest-match-first on prefixes of any valid length.",
  "pub_date": "July 2015",
  "keywords": [
    "IPv6 Routing",
    "CIDR",
    "Classless Inter-Domain Routing",
    "IPv6 Addressing Architecture",
    "IPv6 Forwarding Information Base",
    "IPv6 Routing Information Base",
    "FIB",
    "RIB",
    "IPv6 Deployment"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC7608",
  "errata_url": null
}