BIER IPv6 Requirements
draft-ietf-bier-ipv6-requirements-06
Network Working Group M. McBride
Internet-Draft Futurewei
Intended status: Standards Track J. Xie
Expires: January 29, 2021 S. Dhanaraj
Huawei
R. Asati
Cisco
Y. Zhu
China Telecom
G. Mishra
Verizon Inc.
July 28, 2020
BIER IPv6 Requirements
draft-ietf-bier-ipv6-requirements-06
Abstract
The BIER WG charter includes work on developing "a mechanism to use
BIER natively in IPv6". There have been several proposed solutions
in this area. But there hasn't been a document which describes the
problem and lists the requirements. The goal of this document is to
describe the BIER IPv6 requirements, summarize the encapsulation
modes of the proposed solutions, guide the working group in
understanding the benefits and drawbacks of the various solutions,
and help in the development of acceptable solutions.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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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 January 29, 2021.
McBride, et al. Expires January 29, 2021 [Page 1]
Internet-Draft BIER IPv6 Requirements July 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 3
3. Conceptual Models For BIER IPv6 Encapsulation and Forwarding 4
3.1. Transport-Independent Model . . . . . . . . . . . . . . . 5
3.2. Native IPv6 Model . . . . . . . . . . . . . . . . . . . . 6
3.3. Encapsulation Approaches Considered . . . . . . . . . . . 7
4. Requirements . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1. Mandatory Requirements . . . . . . . . . . . . . . . . . 8
4.1.1. L2 Agnostic . . . . . . . . . . . . . . . . . . . . . 8
4.1.2. Support BIER architecture . . . . . . . . . . . . . . 8
4.1.3. Conform to existing IPv6 Spec . . . . . . . . . . . . 8
4.1.4. Support deployment with Non-BFR routers . . . . . . . 8
4.1.5. Support inter-AS multicast deployment . . . . . . . . 8
4.1.6. Support Simple Encapsulation . . . . . . . . . . . . 9
4.1.7. Support Deployment Security . . . . . . . . . . . . . 9
4.2. Optional Requirements . . . . . . . . . . . . . . . . . . 9
4.2.1. Support MVPN . . . . . . . . . . . . . . . . . . . . 9
4.2.2. Support OAM . . . . . . . . . . . . . . . . . . . . . 9
4.2.3. Support IPSEC . . . . . . . . . . . . . . . . . . . . 9
4.2.4. Support Fragmentation . . . . . . . . . . . . . . . . 9
4.2.5. Support hardware fast path . . . . . . . . . . . . . 10
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
6. Security Considerations . . . . . . . . . . . . . . . . . . . 10
7. Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . 10
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