{
  "draft": "draft-ietf-isis-segment-routing-msd-19",
  "doc_id": "RFC8491",
  "title": "Signaling Maximum SID Depth (MSD) Using IS-IS",
  "authors": [
    "J. Tantsura",
    "U. Chunduri",
    "S. Aldrin",
    "L. Ginsberg"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "10",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Link State Routing",
  "abstract": "This document defines a way for an Intermediate System to Intermediate System (IS-IS) router to advertise multiple types of supported Maximum SID Depths (MSDs) at node and/or link granularity.  Such advertisements allow entities (e.g., centralized controllers) to determine whether a particular Segment ID (SID) stack can be supported in a given network.  This document only defines one type of MSD: Base MPLS Imposition.  However, it defines an encoding that can support other MSD types.  This document focuses on MSD use in a network that is Segment Routing (SR) enabled, but MSD may also be useful when SR is not enabled.",
  "pub_date": "November 2018",
  "keywords": [
    "BGP-LS",
    "SID",
    "MSD",
    "IS-IS"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8491",
  "errata_url": null
}