Internet DRAFT - draft-chen-unified-control-architecture
draft-chen-unified-control-architecture
Network Working Group H. Chen, Ed.
Internet-Draft bupt
Intended status: Informational June 15, 2017
Expires: December 17, 2017
Unified Control Architecture for Optical Transport Networks
draft-chen-unified-control-architecture-00
Abstract
This memo specifies a unified control architecture for Optical
Transport Network (OTN) based on Software Defined Networking (SDN).
The architecture can be applied over multi-domain multi-vendor
networks.
Status of This Memo
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Internet-DraUnified Control Architecture for Optical Transpor June 2017
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 2
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
4. Motivation and Goals . . . . . . . . . . . . . . . . . . . . 2
4.1. Architecture . . . . . . . . . . . . . . . . . . . . . . 3
5. Architectural Considerations of Unified Control Architecture 3
5.1. Data Report . . . . . . . . . . . . . . . . . . . . . . . 3
5.2. Data Filter . . . . . . . . . . . . . . . . . . . . . . . 3
6. Security Considerations . . . . . . . . . . . . . . . . . . . 3
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 3
8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 3
9. Normative References . . . . . . . . . . . . . . . . . . . . 3
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3
1. Introduction
This memo introduce an Software Defined Networking (SDN) based
architecture to monitor and analyse physical parameters on various
types of network equipments, and control the adjustable part of whole
parameters. SDN is a programmable networks approach that supports
the separation of control and forwarding plane via standardized
interfaces, and make equipments foolish while centralizing control
function on a logical entity named Controller. The controller can
achieve rapid and accurate fault location, dynamic parameter
adjustment, device aging forecast, and cross-layer optimization via
this memo.
2. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
3. Terminology
4. Motivation and Goals
In order to support various cloud services which are remote and
geographically distributed, we need a high-capacity, high-reliability
and high-flexibility network. Optical network, as a strong
candidate, could provide energy-efficiency, dynamic control, and
recent technology advancements including software defined network
(SDN) support. Software defined optical network (SDON), which allows
carriers to control the optical network using software running on a
network operating system, leads to a more flexible control manner.
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Internet-DraUnified Control Architecture for Optical Transpor June 2017
On the other hand, in today's commercial optical transport networks
(OTN), different domains, especially equipment of different vendors,
are separately operated without dynamic interaction, which leads to
low network efficiency, high OPEX and CAPAX. In light of this, some
latest activities have tried to apply SDON/Openflow to multi-domain
optical networks. This results in a lack of universality for
promoting a unified control manner for multi-vendor multi-domain OTN.
4.1. Architecture
The unified control orchestrator (UCO) architecture for multi-vendor
multi-domain OTN is illustrated. The architecture aims to achieve
the port discovery, resources collection, routing path computing, OTN
connection creation, and connection deletion. 4 layers are presented
for the required functions.
5. Architectural Considerations of Unified Control Architecture
5.1. Data Report
5.2. Data Filter
6. Security Considerations
7. Acknowledgments
8. Contributors
9. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
Author's Address
Haoran Chen (editor)
Beijing University of Posts and Telecommunications
Xitucheng Road
Beijing, Haidian Dist 100876
China
Email: haoran1860@163.com
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