{
  "draft": "draft-ietf-bess-rfc5549revision-06",
  "doc_id": "RFC8950",
  "title": "Advertising IPv4 Network Layer Reachability Information (NLRI) with an IPv6 Next Hop",
  "authors": [
    "S. Litkowski",
    "S. Agrawal",
    "K. Ananthamurthy",
    "K. Patel"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "12",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "BGP Enabled ServiceS",
  "abstract": "Multiprotocol BGP (MP-BGP) specifies that the set of usable next-hop address families is determined by the Address Family Identifier (AFI) and the Subsequent Address Family Identifier (SAFI). The AFI/SAFI definitions for the IPv4 address family only have provisions for advertising a next-hop address that belongs to the IPv4 protocol when advertising IPv4 Network Layer Reachability Information (NLRI) or VPN-IPv4 NLRI.\n\n This document specifies the extensions necessary to allow the advertising of IPv4 NLRI or VPN-IPv4 NLRI with a next-hop address that belongs to the IPv6 protocol. This comprises an extension of the AFI/SAFI definitions to allow the address of the next hop for IPv4 NLRI or VPN-IPv4 NLRI to also belong to the IPv6 protocol, the encoding of the next hop to determine which of the protocols the address actually belongs to, and a BGP Capability allowing MP-BGP peers to dynamically discover whether they can exchange IPv4 NLRI and VPN-IPv4 NLRI with an IPv6 next hop. This document obsoletes RFC 5549.",
  "pub_date": "November 2020",
  "keywords": [
    "bgp",
    "mvpn",
    "vpnv4",
    "vpnv6"
  ],
  "obsoletes": [
    "RFC5549"
  ],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8950",
  "errata_url": null
}