An Architecture for Overlay Networks (NVO3)
draft-ietf-nvo3-arch-04
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Active Internet-Draft (nvo3 WG)
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2015-11-25
(latest revision 2015-10-19)
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draft-narten-nvo3-arch
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IETF
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Informational
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pdf
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bibtex
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WG Document
Revised I-D Needed - Issue raised by WG, Waiting for Referencing Document
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Document shepherd |
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Matthew Bocci
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I-D Exists
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Unknown
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(None)
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Send notices to |
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"Matthew Bocci" <matthew.bocci@alcatel-lucent.com>
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Internet Engineering Task Force D. Black
Internet-Draft EMC
Intended status: Informational J. Hudson
Expires: April 21, 2016 Brocade
L. Kreeger
Cisco
M. Lasserre
Alcatel-Lucent
T. Narten
IBM
October 19, 2015
An Architecture for Overlay Networks (NVO3)
draft-ietf-nvo3-arch-04
Abstract
This document presents a high-level overview architecture for
building overlay networks in NVO3. The architecture is given at a
high-level, showing the major components of an overall system. An
important goal is to divide the space into individual smaller
components that can be implemented independently and with clear
interfaces and interactions with other components. It should be
possible to build and implement individual components in isolation
and have them work with other components with no changes to other
components. That way implementers have flexibility in implementing
individual components and can optimize and innovate within their
respective components without requiring changes to other components.
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
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 April 21, 2016.
Black, et al. Expires April 21, 2016 [Page 1]
Internet-Draft Overlays for Network Virtualization October 2015
Copyright Notice
Copyright (c) 2015 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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Background . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. VN Service (L2 and L3) . . . . . . . . . . . . . . . . . 6
3.1.1. VLAN Tags in L2 Service . . . . . . . . . . . . . . . 7
3.1.2. TTL Considerations . . . . . . . . . . . . . . . . . 7
3.2. Network Virtualization Edge (NVE) . . . . . . . . . . . . 7
3.3. Network Virtualization Authority (NVA) . . . . . . . . . 9
3.4. VM Orchestration Systems . . . . . . . . . . . . . . . . 10
4. Network Virtualization Edge (NVE) . . . . . . . . . . . . . . 11
4.1. NVE Co-located With Server Hypervisor . . . . . . . . . . 11
4.2. Split-NVE . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.1. Tenant VLAN handling in Split-NVE Case . . . . . . . 13
4.3. NVE State . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4. Multi-Homing of NVEs . . . . . . . . . . . . . . . . . . 14
4.5. VAP . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5. Tenant System Types . . . . . . . . . . . . . . . . . . . . . 15
5.1. Overlay-Aware Network Service Appliances . . . . . . . . 15
5.2. Bare Metal Servers . . . . . . . . . . . . . . . . . . . 15
5.3. Gateways . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3.1. Gateway Taxonomy . . . . . . . . . . . . . . . . . . 16
5.3.1.1. L2 Gateways (Bridging) . . . . . . . . . . . . . 16
5.3.1.2. L3 Gateways (Only IP Packets) . . . . . . . . . . 17
5.4. Distributed Inter-VN Gateways . . . . . . . . . . . . . . 17
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