Solutions for BGP Persistent Route Oscillation (RFC7964)
Original Publication Date: 2016-Sep-01
Included in the Prior Art Database: 2016-Sep-30
Internet Society Requests For Comment (RFCs)
D. Walton: AUTHOR [+4]
As documented in [RFC3345], routing information reduction by BGP Route Reflection [RFC4456] or BGP Confederation [RFC5065] can result in persistent Internal BGP (IBGP) route oscillations with certain routing setups and network topologies. Except for a couple of artificially engineered network topologies, the MULTI_EXIT_DISC (MED) attribute [RFC4271] has played a pivotal role in virtually all known persistent IBGP route oscillations. For the sake of brevity, we use the term "MED-induced route oscillation" hereafter to refer to a persistent IBGP route oscillation in which the MED plays a role.
Internet Engineering Task Force (IETF) D. Walton Request for Comments: 7964 Cumulus Networks Category: Standards Track A. Retana ISSN: 2070-1721 E. Chen Cisco Systems, Inc. J. Scudder Juniper Networks September 2016
Solutions for BGP Persistent Route Oscillation
Routing information reduction by BGP Route Reflection or Confederation can result in persistent internal BGP route oscillations with certain routing setups and network topologies. This document specifies two sets of additional paths that can be used to eliminate these route oscillations in a network.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7964.
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al. Standards Track [Page 1]
RFC 7964 BGP Oscillation Solutions September 2016
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . ...