A 6loRH for BitStrings
draft-thubert-6lo-bier-dispatch-02
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6lo P. Thubert, Ed.
Internet-Draft Cisco
Intended status: Standards Track Z. Brodard
Expires: July 28, 2017 Ecole Polytechnique
H. Jiang
G. Texier
Telecom Bretagne
January 24, 2017
A 6loRH for BitStrings
draft-thubert-6lo-bier-dispatch-02
Abstract
This specification extends the 6LoWPAN Routing Header to signal
BitStrings such as utilized in Bit Index Explicit Replication and its
Traffic Engineering variant.
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
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and may be updated, replaced, or obsoleted by other documents at any
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 28, 2017.
Copyright Notice
Copyright (c) 2017 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
(http://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
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
Thubert, et al. Expires July 28, 2017 [Page 1]
Internet-Draft A 6loRH for BitStrings January 2017
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 3
4. The BIER-6LoRH encoding . . . . . . . . . . . . . . . . . . . 4
4.1. The Bit-by-bit BitStrings . . . . . . . . . . . . . . . . 5
4.2. Bloom Filters . . . . . . . . . . . . . . . . . . . . . . 5
4.3. Types of BIER-6LoRH header . . . . . . . . . . . . . . . 5
5. Implementation Status . . . . . . . . . . . . . . . . . . . . 6
6. Security Considerations . . . . . . . . . . . . . . . . . . . 7
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 7
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
9.1. Normative References . . . . . . . . . . . . . . . . . . 7
9.2. Informative References . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 9
1. Introduction
The type of information that needs to be present in a packet inside
the LLN but not outside of the LLN varies with the routing operation,
but there is overall a need for an extensible compression technique
that would simplify the IP-in-IP encapsulation, when needed, and
optimally compress existing routing artifacts found in LLNs.
The 6LoWPAN Routing Header (6LoRH) [RFC8025]
[I-D.ietf-roll-routing-dispatch] is such a technique, that extends
the 6lo adaptation layer framework [RFC4944], [RFC6282] so as to
carry routing information for Route-over use cases. The original
specification includes the formats necessary for RPL such as the
Source Route Header (SRH) and is intended to be extended for
additional routing artifacts.
The Bit Index Explicit Replication (BIER), as introduced in the BIER
Architecture [I-D.ietf-bier-architecture], can be used as an
alternate artifact to route multicast as well as unicast traffic.
The Traffic Engineering for Bit Index Explicit Replication
[I-D.eckert-bier-te-arch] (BIER-TE) adds support for traffic
engineering by explicit hop-by-hop forwarding and loose hop
forwarding of packets along a unicast route.
This specification provides additional formats for the 6LoRH
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