{
  "draft": "draft-ogier-ospf-dbex-opt-03",
  "doc_id": "RFC5243",
  "title": "OSPF Database Exchange Summary List Optimization",
  "authors": [
    "R. Ogier"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "5",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Open Shortest Path First IGP",
  "abstract": "This document describes a backward-compatible optimization for the Database Exchange process in OSPFv2 and OSPFv3.  In this optimization, a router does not list a Link State Advertisement (LSA) in Database Description packets sent to a neighbor, if the same or a more recent instance of the LSA was listed in a Database Description packet already received from the neighbor.  This optimization reduces Database Description overhead by about 50% in large networks.  This optimization does not affect synchronization, since it only omits unnecessary information from Database Description packets.  This memo provides information for the Internet community.",
  "pub_date": "May 2008",
  "keywords": [],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [
    "RFC9454"
  ],
  "see_also": [],
  "doi": "10.17487/RFC5243",
  "errata_url": "https://www.rfc-editor.org/errata/rfc5243"
}