HUAWEI TECHNOLOGIES CO., LTD.
Embracing Transport SDN for Open Networking Architectures
Yabin YE [email protected]
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Move Towards SDN
Transport SDN Use Cases
Examples of Transport SDN
Agenda
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ONF Definition of SDN Architecture
Source: ONF white paper -- Software-Defined Networking (SDN): The New Norm for Networks
Controller
APP1 APPn
OF Switch
OF Switch
OF Switch
OF Switch
OF: OpenFlow
Secure Channel
Switching HW
Thin SW
Flow Table
OpenFlow Switch
Network: SDN Based Architecture Datacenters: Open Flow Switch Diagram
Main Characteristics: the Control and Data planes are decoupled, Centralized Controller, Open & Programmable, Virtualized Data plane
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Industry Mainstream SDN Models Open flow Model (IT ) Open API Model (CT )
Equipment programmable internally
•Open and standard North & Southbound interfaces, the forwarding plane is standardized, programmable
•More flexible •Difficult to evolve from existing
network
Equipment programmable by Open API
•Open and standard Northbound interface
•To preserve and reuse existing equipment
•Medium flexibility, not completely open
•Easy evolution from existing equipment
Different degrees of network openness and programmability, different flexibility, different difficulties to achieve, applied for
different scenarios.
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The Industry Progress of SDN Google G-Scale Software
Defined WAN
ICP operators vigorously embrace SDN.
Telecom operators are also actively exploring SDN application in telco network and focus on Cloud technology / Open Network/ synergy , such as Telefonica, NTT, Vodafone, DT, FT, BT, etc.
Sample Utilization after SDN Deployment Close to 100%
Industry Level: 30%~40%
Google's software-defined backbone drives WAN links to 100% utilization
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Move Towards SDN
Transport SDN Use cases
Examples of Transport SDN
Agenda
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Transport SDN Main Characteristics and Values
Advanced Controller Reliability, scalability,
security and flexible
deployment
IT Style NBI
New programming paradigm: IT style IDE, complete open…
Multi-mode SBI
PCEP, Openflow, etc, multiple SBI addressing multiple scenarios
Flexible Infrastructure
Modulation format, distance, bandwidth, fully programmable
Automation Virtualization Synergy Flexible Open
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Automatic Operation for Online Service Delivering
NMS Planner
Commissioning tools
Performance Monitor
Designer Client
Today: w/o SDN The tools and function unit are
off-line and isolated, lack of real time and interoperability.
Slow TTM
Future: w/ SDN The tools and function unit
are all joined up, sharing the data. The service delivering
is online and fast
Automation Virtualization Synergy Flexible Open
Planner Designer etc
T-SDN Controller
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Virtual management to reduce the CAPEX and OPEX
Automation Virtualization Synergy Flexible Open
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Centralized Mgmt for multi-domain Transport Network
Control plane
Data Plane Data Plane
Data Plane
Data Plane
Data Plane
SDN Controller
Controls End-to-End Network
Client’s Virtual View & Control of End-to-End Network
Transport Network A Transport Network B Transport Network C
3
2 4
1 8 B 6
7 5
A
Control Layer
Infrastructure Layer
Centralized multi-domain management, shorten service
TTM
Automation Virtualization Synergy Flexible Open
Control plane
Data Plane
Control plane
Data Plane
Control plane
Data Plane
Control plane
Data Plane
Control plane
Data Plane
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SDN-based IP + Optical Synergy to Improve E2E Network Resource Utilization
Automation Virtualization Synergy Flexible Open
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Multilayer Unified Control for MS-OTN, Providing Optimal Bandwidth Resources
Automation Virtualization Synergy Flexible Open
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Unified Control for Future Flex Optical Network, Ease the Network Management
SBI
Coding Control
Spectrum Control
Wavelength Planning ...
T - Controller
• Transport network trends to be flex-Optical (flex-grid, flex-OTN, etc).
• T-SDN provide centralized control of the flex-optical for easy network planning and easy deployment of new services.
100G 200G 400G 1T 2T
Automation Virtualization Synergy Flexible Open
Application Layer
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T-SDN Maximizes the Future Flex-Optical Network Efficiency
Automation Virtualization Synergy Flexible Open
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Open platform to simplify OSS and achieve innovative applications
Automation Virtualization Synergy Flexible Open
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Virtual Transport Service (Network as a Service)
Automation Virtualization Synergy Flexible Open
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Bandwidth on Demand (Service aware & dynamic bandwidth)
Automation Virtualization Synergy Flexible Open
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Move Towards SDN
Transport SDN Use Cases
Examples of Transport SDN
Agenda
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T-SDN Helps Operator to Improve Cross-vendor Interoperability
Thank you www.huawei.com
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The information contained in this document is for reference purpose only, and is subject to change or withdrawal according to specific customer requirements and conditions.
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