Framework for Data Center (DC) Network Virtualization
RFC 7365
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Type |
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RFC - Informational
(October 2014; No errata)
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Last updated |
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2015-10-14
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Replaces |
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draft-lasserre-nvo3-framework
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Stream |
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IETF
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Formats |
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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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Matthew Bocci
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Shepherd write-up |
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Show
(last changed 2014-06-11)
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| IESG |
IESG state |
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RFC 7365 (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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Alia Atlas
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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) M. Lasserre
Request for Comments: 7365 F. Balus
Category: Informational Alcatel-Lucent
ISSN: 2070-1721 T. Morin
Orange
N. Bitar
Verizon
Y. Rekhter
Juniper
October 2014
Framework for Data Center (DC) Network Virtualization
Abstract
This document provides a framework for Data Center (DC) Network
Virtualization over Layer 3 (NVO3) and defines a reference model
along with logical components required to design a solution.
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 5741.
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/rfc7365.
Lasserre, et al. Informational [Page 1]
RFC 7365 Framework for DC Network Virtualization October 2014
Copyright Notice
Copyright (c) 2014 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.
Lasserre, et al. Informational [Page 2]
RFC 7365 Framework for DC Network Virtualization October 2014
Table of Contents
1. Introduction ....................................................4
1.1. General Terminology ........................................4
1.2. DC Network Architecture ....................................7
2. Reference Models ................................................8
2.1. Generic Reference Model ....................................8
2.2. NVE Reference Model .......................................10
2.3. NVE Service Types .........................................11
2.3.1. L2 NVE Providing Ethernet LAN-Like Service .........11
2.3.2. L3 NVE Providing IP/VRF-Like Service ...............11
2.4. Operational Management Considerations .....................12
3. Functional Components ..........................................12
3.1. Service Virtualization Components .........................12
3.1.1. Virtual Access Points (VAPs) .......................12
3.1.2. Virtual Network Instance (VNI) .....................12
3.1.3. Overlay Modules and VN Context .....................14
3.1.4. Tunnel Overlays and Encapsulation Options ..........14
3.1.5. Control-Plane Components ...........................14
3.1.5.1. Distributed vs. Centralized
Control Plane .............................14
3.1.5.2. Auto-provisioning and Service Discovery ...15
3.1.5.3. Address Advertisement and Tunnel Mapping ..15
3.1.5.4. Overlay Tunneling .........................16
3.2. Multihoming ...............................................16
3.3. VM Mobility ...............................................17
4. Key Aspects of Overlay Networks ................................17
4.1. Pros and Cons .............................................18
4.2. Overlay Issues to Consider ................................19
4.2.1. Data Plane vs. Control Plane Driven ................19
4.2.2. Coordination between Data Plane and Control Plane ..19
4.2.3. Handling Broadcast, Unknown Unicast, and
Multicast (BUM) Traffic ............................20
4.2.4. Path MTU ...........................................20
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