{
  "draft": "draft-ietf-mpls-sr-over-ip-07",
  "doc_id": "RFC8663",
  "title": "MPLS Segment Routing over IP",
  "authors": [
    "X. Xu",
    "S. Bryant",
    "A. Farrel",
    "S. Hassan",
    "W. Henderickx",
    "Z. Li"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "17",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Multiprotocol Label Switching",
  "abstract": "MPLS Segment Routing (SR-MPLS) is a method of source routing a packet through an MPLS data plane by imposing a stack of MPLS labels on the packet to specify the path together with any packet-specific instructions to be executed on it. SR-MPLS can be leveraged to realize a source-routing mechanism across MPLS, IPv4, and IPv6 data planes by using an MPLS label stack as a source-routing instruction set while making no changes to SR-MPLS specifications and interworking with SR-MPLS implementations.\n\n This document describes how SR-MPLS-capable routers and IP-only routers can seamlessly coexist and interoperate through the use of SR-MPLS label stacks and IP encapsulation/tunneling such as MPLS-over-UDP as defined in RFC 7510.",
  "pub_date": "December 2019",
  "keywords": [
    "SR-MPLS",
    "MPLS-in-UDP"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8663",
  "errata_url": "https://www.rfc-editor.org/errata/rfc8663"
}