BMP for BGP Route Leak Detection
draft-gu-grow-bmp-route-leak-detection-04

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Last updated 2020-09-10
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Network Working Group                                              Y. Gu
Internet-Draft                                                    Huawei
Intended status: Standards Track                                 H. Chen
Expires: March 15, 2021                          China Telecom Co., Ltd.
                                                                   D. Ma
                                                                    ZDNS
                                                               S. Zhuang
                                                                  Huawei
                                                      September 11, 2020

                    BMP for BGP Route Leak Detection
               draft-gu-grow-bmp-route-leak-detection-04

Abstract

   According to RFC7908 [RFC7908], Route leaks refer to the case that
   the delivery range of route advertisements is beyond the expected
   range.  For many current security protection solutions, the ISPs
   (Internet Service Providers) are focusing on finding ways to prevent
   the happening of BGP [RFC4271] route leaks.  However, the real-time
   route leak detection if any occurs is important as well, and serves
   as the basis for leak mitigation.  This document extends the BGP
   Monitoring Protocol (BMP) [RFC7854] to provide a routing security
   scheme suitable for ISPs to detect BGP route leaks at the prefix
   level.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Internet-Drafts are draft documents valid for a maximum of six months
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   material or to cite them other than as "work in progress."

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Internet-Draft            Route Leak Detection            September 2020

   This Internet-Draft will expire on March 15, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Actions Against Route Leaks . . . . . . . . . . . . . . .   3
     2.2.  Challenges of the Current Actions against Route Leaks . .   4
   3.  Route Leak Detection (RLD) Design Considerations  . . . . . .   5
   4.  BMP Support for RLD . . . . . . . . . . . . . . . . . . . . .   5
     4.1.  RLD TLV Format  . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  RLD TLV Usage . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  Coordination with iOTC and RLP  . . . . . . . . . . . . .   7
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   6.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Terminology

   BMP: BGP Monitoring Protocol

   BMS: BGP Monitoring Station

   C2P: Customer to Provider

   ISP: Internet Service Provider

   P2C: Provider to Customer

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Internet-Draft            Route Leak Detection            September 2020

   P2P: Peer to Peer

   RIB: Routing Information Base

   RLP: Route Leak Protection

   RLD: Route Leak Detection

2.  Introduction

   RFC7908 [RFC7908]defines "Route Leak" as: A route leak is the
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