An Architecture for the Interface to the Routing System
RFC 7921
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Type |
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RFC - Informational
(June 2016; No errata)
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Last updated |
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2016-06-30
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Replaces |
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draft-atlas-i2rs-architecture
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Mach Chen
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Shepherd write-up |
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Show
(last changed 2016-02-29)
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| IESG |
IESG state |
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RFC 7921 (Informational)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Deborah Brungard
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Send notices to |
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(None)
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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No IANA Actions
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Internet Engineering Task Force (IETF) A. Atlas
Request for Comments: 7921 Juniper Networks
Category: Informational J. Halpern
ISSN: 2070-1721 Ericsson
S. Hares
Huawei
D. Ward
Cisco Systems
T. Nadeau
Brocade
June 2016
An Architecture for the Interface to the Routing System
Abstract
This document describes the IETF architecture for a standard,
programmatic interface for state transfer in and out of the Internet
routing system. It describes the high-level architecture, the
building blocks of this high-level architecture, and their
interfaces, with particular focus on those to be standardized as part
of the Interface to the Routing System (I2RS).
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 7841.
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/rfc7921.
Atlas, et al. Informational [Page 1]
RFC 7921 I2RS Architecture June 2016
Copyright Notice
Copyright (c) 2016 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
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Atlas, et al. Informational [Page 2]
RFC 7921 I2RS Architecture June 2016
Table of Contents
1. Introduction ....................................................4
1.1. Drivers for the I2RS Architecture ..........................5
1.2. Architectural Overview .....................................6
2. Terminology ....................................................11
3. Key Architectural Properties ...................................13
3.1. Simplicity ................................................13
3.2. Extensibility .............................................14
3.3. Model-Driven Programmatic Interfaces ......................14
4. Security Considerations ........................................15
4.1. Identity and Authentication ...............................17
4.2. Authorization .............................................18
4.3. Client Redundancy .........................................19
4.4. I2RS in Personal Devices ..................................19
5. Network Applications and I2RS Client ...........................19
5.1. Example Network Application: Topology Manager .............20
6. I2RS Agent Role and Functionality ..............................20
6.1. Relationship to Its Routing Element .......................20
6.2. I2RS State Storage ........................................21
6.2.1. I2RS Agent Failure .................................21
6.2.2. Starting and Ending ................................22
6.2.3. Reversion ..........................................23
6.3. Interactions with Local Configuration .....................23
6.3.1. Examples of Local Configuration vs. I2RS
Ephemeral Configuration ............................24
6.4. Routing Components and Associated I2RS Services ...........26
6.4.1. Routing and Label Information Bases ................28
6.4.2. IGPs, BGP, and Multicast Protocols .................28
6.4.3. MPLS ...............................................29
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