A YANG Data Model for Fabric Topology in Data-Center Networks
RFC 8542
Document | Type | RFC - Proposed Standard (March 2019; No errata) | |
---|---|---|---|
Authors | Zhuangyan , Danian Shi , Rong Gu , Hariharan Ananthakrishnan | ||
Last updated | 2019-03-25 | ||
Replaces | draft-zhuang-i2rs-yang-dc-fabric-network-topology | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Yang Validation | ☯ 0 errors, 0 warnings. | ||
Reviews | |||
Additional Resources | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Susan Hares | ||
Shepherd write-up | Show (last changed 2018-02-09) | ||
IESG | IESG state | RFC 8542 (Proposed Standard) | |
Action Holders |
(None)
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||
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Martin Vigoureux | ||
Send notices to | Susan Hares <shares@ndzh.com> | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) Y. Zhuang Request for Comments: 8542 D. Shi Category: Standards Track Huawei ISSN: 2070-1721 R. Gu China Mobile H. Ananthakrishnan Netflix March 2019 A YANG Data Model for Fabric Topology in Data-Center Networks Abstract This document defines a YANG data model for fabric topology in data- center networks and represents one possible view of the data-center fabric. This document focuses on the data model only and does not endorse any kind of network design that could be based on the abovementioned model. Status of This Memo This is an Internet Standards Track document. 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). Further information on Internet Standards is available in 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 https://www.rfc-editor.org/info/rfc8542. Copyright Notice Copyright (c) 2019 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 (https://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. Zhuang, et al. Standards Track [Page 1] RFC 8542 Data Model for DC Fabric Topology March 2019 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Definitions and Acronyms . . . . . . . . . . . . . . . . . . 3 2.1. Key Words . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 3. Model Overview . . . . . . . . . . . . . . . . . . . . . . . 4 3.1. Topology Model Structure . . . . . . . . . . . . . . . . 4 3.2. Fabric Topology Model . . . . . . . . . . . . . . . . . . 4 3.2.1. Fabric Topology . . . . . . . . . . . . . . . . . . . 5 3.2.2. Fabric Node Extension . . . . . . . . . . . . . . . . 6 3.2.3. Fabric Termination-Point Extension . . . . . . . . . 7 4. Fabric YANG Modules . . . . . . . . . . . . . . . . . . . . . 8 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 21 6. Security Considerations . . . . . . . . . . . . . . . . . . . 22 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.1. Normative References . . . . . . . . . . . . . . . . . . 23 7.2. Informative References . . . . . . . . . . . . . . . . . 24 Appendix A. Non-NMDA-State Modules . . . . . . . . . . . . . . . 25 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 32 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 32 1. Introduction A data-center (DC) network can be composed of single or multiple fabrics, which are also known as Points Of Delivery (PODs). These fabrics may be heterogeneous due to implementation of different technologies when a DC network is upgraded or new techniques and features are rolled out. For example, within a DC network, Fabric A may use Virtual eXtensible Local Area Network (VXLAN) while Fabric B may use VLAN. Likewise, an existing fabric may use VXLAN while a new fabric (for example, a fabric introduced for DC upgrade and expansion) may implement a technique discussed in the NVO3 Working Group, such as Geneve [GENEVE]. The configuration and management of such DC networks with heterogeneous fabrics could result in considerable complexity. For a DC network, a fabric can be considered as an atomic structure for management purposes. From this point of view, the management of the DC network can be decomposed into a set of tasks to manage each fabric separately, as well as the fabric interconnections. The advantage of this method is to make the overall management tasks flexible and easy to extend in the future.Show full document text