BGP Large Communities applications for IXP Route Servers
draft-adkp-grow-ixpcommunities-00

Abstract

This document presents suggestion and examples for application of BGP Large Communities [RFC8092] at Internet Exchange Points (IXPs). Suggestions are based on operational experiences from IXP operators and members. Any IXP operator or IXP member can consider using these communities. The document specifically focusses on Route Server [RFC7947] deployments in IXP context [RFC7948].

Requirements Language

The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here.

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 working documents as Internet-Drafts. The list of current Internet-Drafts is at https://datatracker.ietf.org/drafts/current/.

Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress."

This Internet-Draft will expire on September 12, 2019.

Copyright Notice

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Table of Contents

• 1. Introduction
• 2. Justification
• 3. Suggested Large BGP Community Standard List
• 4. Security Considerations
• 5. IANA Considerations
• 6. Acknowledgments
• 7. Appendix: Implementation Guidance
• 8. References
• 8.1. Normative References
• 8.2. Informative References
• Authors' Addresses

1. Introduction

This document presents suggestions for the application of BGP Large Communities [RFC8092] to IXP operators and members using the BGP [RFC4271] protocol. It adds specific suggestions for the operators and members of IXPs deploying BGP Large Communities as suggested in [RFC8195].

2. Justification

Networks operating in the DFZ tend to exchange routing information at multiple IXP in order to improve redundancy and geographical optimization. Besides 'the typical' IXP members an increasing amount of enterprise networks connect to IXPs. They have additional requirements. In order to offer a uniform mode of operation across different IXPs there is a need to provide standards.

3. Suggested Large BGP Community Standard List

This list proposes a standard to use in IXP operations for the use of BGP Large Communities. It was first published at the EURO-IX website [EURO-IX].

The tables below provide a per 'section' divided overview of Large Community usage.

Free to use informational communities

4. Security Considerations

Operators should note the recommendations in Section 11 of BGP Operations and Security [RFC7454] and handle BGP Large Communities with their ASN in the Global Administrator field similarly.

5. IANA Considerations

6. Acknowledgments

The authors would like to thank Colby Barth (Juniper Networks) and Bijal Sanghani (EURO-IX) for their support, insightful review, and comments.

7. Appendix: Implementation Guidance

8. References

8.1. Normative References

8.2. Informative References

Authors' Addresses