{
  "number": 4971,
  "title": "Intermediate System to Intermediate System (IS-IS) Extensions for Advertising Router Information",
  "authors": [
    "JP. Vasseur, Ed.",
    "N. Shen, Ed.",
    "R. Aggarwal, Ed."
  ],
  "published": "2007-07",
  "status": "Proposed Standard",
  "stream": "IETF",
  "area": "rtg",
  "working_group": "isis",
  "pages": 9,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "This document defines a new optional Intermediate System to Intermediate System (IS-IS) TLV named CAPABILITY, formed of multiple sub-TLVs, which allows a router to announce its capabilities within an IS-IS level or the entire routing domain. [STANDARDS-TRACK]",
  "keywords": [
    "capabilty"
  ],
  "draft": "draft-ietf-isis-caps-07",
  "doi": "10.17487/RFC4971",
  "obsoleted_by": [
    "RFC7981"
  ],
  "urls": {
    "html": "https://rfc.dk/rfc4971/",
    "text": "https://rfc.dk/rfc4971.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc4971",
    "datatracker": "https://datatracker.ietf.org/doc/rfc4971/"
  },
  "text_modified": "2007-07-31T00:20:58Z"
}