Internet Engineering Task Force (IETF) M. Jethanandani
Request for Comments: 6952 Ciena Corporation
Category: Informational K. Patel
ISSN: 2070-1721 Cisco Systems, Inc
L. Zheng
Huawei Technologies
May 2013
Analysis of BGP, LDP, PCEP, and MSDP Issues According to the
Keying and Authentication for Routing Protocols (KARP) Design Guide
Abstract
This document analyzes TCP-based routing protocols, the Border
Gateway Protocol (BGP), the Label Distribution Protocol (LDP), the
Path Computation Element Communication Protocol (PCEP), and the
Multicast Source Distribution Protocol (MSDP), according to
guidelines set forth in Section 4.2 of "Keying and Authentication for
Routing Protocols Design Guidelines", RFC 6518.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
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/rfc6952.
Jethanandani, et al. Informational [Page 1]RFC 6952 BGP, LDP, PCEP, and MSDP Analysis May 2013Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 4
2. Current Assessment of BGP, LDP, PCEP, and MSDP . . . . . . . 5
2.1. Transport Layer . . . . . . . . . . . . . . . . . . . . . 5
2.2. Keying Mechanisms . . . . . . . . . . . . . . . . . . . . 6
2.3. BGP . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4. LDP . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4.1. Spoofing Attacks . . . . . . . . . . . . . . . . . . 7
2.4.2. Denial-of-Service Attacks . . . . . . . . . . . . . . 8
2.5. PCEP . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6. MSDP . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Optimal State for BGP, LDP, PCEP, and MSDP . . . . . . . . . 10
3.1. LDP . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Gap Analysis for BGP, LDP, PCEP, and MSDP . . . . . . . . . . 11
4.1. LDP . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2. PCEP . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5. Transition and Deployment Considerations . . . . . . . . . . 13
6. Security Considerations . . . . . . . . . . . . . . . . . . . 13
7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
8.1. Normative References . . . . . . . . . . . . . . . . . . 14
8.2. Informative References . . . . . . . . . . . . . . . . . 14
Jethanandani, et al. Informational [Page 2]RFC 6952 BGP, LDP, PCEP, and MSDP Analysis May 20131. Introduction
In their "Report from the IAB Workshop on Unwanted Traffic March
9-10, 2006" [RFC4948], the Internet Architecture Board (IAB)
described an attack on core routing infrastructure as an ideal attack
that would inflict the greatest amount of damage and suggested steps
to tighten the infrastructure against the attack. Four main steps
were identified for that tightening:
datatracker.ietf.org