virtual transport network service sdn-based optical network virtualization
TRANSCRIPT
Virtual Transport Network Service SDN-Based Optical Network Virtualization
Lyndon Ong OIF MA&E Committee Co-Chair
Ciena, USA
Layer 123 NFV World Congress
Santa Clara, CA, USA April 22, 2016
About the OIF
The Optical Internetworking Forum: • Represents an end-to-end ecosystem
membership base of 100+ members • Accelerating market adoption and
ROI for new technologies • OIF 100G DWDM work united the industry
around a 100G framework and IAs for photonics, FEC and module MSA
• Electrical work defines critical backplane, chip and module interfaces for 100-400G
• Open and agile workplan • Find gaps obstructing deployment and fill
them internally or working with other SDOs • Distributed Control, Centralized Control –
whatever best fits operator needs!
www.oiforum.com
Network Operators
System Suppliers
Transceiver Suppliers
Component Suppliers
OIF’s Goals: Transport SDN Toolkit
� Essential tools for Transport SDN deployment • Address carrier operations environment
• Brownfield as well as Greenfield • Enable differentiated services
• Speed service development through standard network APIs • Deliver scalability, security and high performance
• Hierarchical structure with mix of local and central functions
APIs
Services
SDN Architecture for Transport
Interoperability demos
Carrier Requirements
Transport Network Virtualization
� Network resources dynamically allocated for high utilization � Resources can be partitioned into slices for service or user � Control exposed through open interfaces
→ Proprietary, vendor-specific silos → Complex to operate, integrate across
vendors/technologies
→ Logically centralized, vendor-agnostic control and service orchestration
→ Virtualization of physical network resources
OSS Platform
Proprietary OS
Vendor X HW
Proprietary OS
Vendor Y HW
Proprietary OS
Vendor Z HW
Current Networks Software-Defined Networks
OSS Platform/SDN Apps
Virtualized Multi-vendor Multi-domain Network
SDN SW
SDN-enabled HW
Open APIs Vendor EMS SDN Control Infrastructure
OIF Virtual Network Service Decomposition
� Virtual networking service evolution � Each service type offers greater control
Fixed
Connection
Dynamic
Connection
Dynamic
Connection
Client
site A
Client
site B
Client site A
Client site B
Client site D
Client site C
Client site A
Client site B
Client site D
Client site C
Virtual network
with vNE & vLink
Client
controller
Ctrl of
virtual XC
Connection controlled
by network providers
Leased Line
Endpoints Only
Fixed virtual
network topology
Static
Dynamic Dynamic
Connection
Virtual network
with vNE & vLink
Client
controller Rent virtual network
resources from provider
Client site
Virtual network
recursive
creation
Client site
Client site Client site
Client site
Client site Client site
Dynamic/recursive virtual
network topology
OIF Service Definition
• Service Attributes • Service Capabilities • Recovery Requirements • OAM Requirements
Harmonize Services Definitions for all players, i.e. Transport Network Services
- Providers - Users - Equipment/SW Vendors
Working Protection
� Request On Line � Real-time planning � Real-time setup
� Autonomous Control � Dynamic expansion � Optimization
• Multi-level SLA • Recovery • Network migration
Seconds
Online
Goal: Network Slicing Real Time
Open APIs
Robust Data Plane
Physical Optical Network
Virtual Network Topology
Network as a Service
Online Slicing Path Computation
Survivability Analysis Global Optimization
Tenants
T-SDN Controller
SDN Virtualization Model
� Multiple Client Contexts – resources and service endpoints � Controller does orchestration and virtualization of actual data plane
• https://www.opennetworking.org/images/stories/downloads/sdn-resources/technical-reports/SDN_Architecture_for_Transport_Networks_TR522.pdf
• ONF Transport SDN Architecture – TR-522 7
SDN Parent Controller/App (Green)
Resource Group 1
SDN Controller B
Server Context
Server Context
Client Context
CC m
NE1
Resource Group 2
Server Context
CC n
NE2
RG B2
RG B4
RG B5
RG B3
RG B1
Data Plane
SDN Controller B
Client Context
NE NE NE
NE
NE
NE NE
NE
Orchestration and Virtualization
SDN Controller C
Server Context
Client Context
RG B2
RG B4
RG B5
RG B3
RG B1
Transport API Development
• ONF Project closely coordinated with OIF work on VTNS
• Interface to a Transport Network Controller allowing access to Topology,
Connectivity, Virtualization and other services
• Functional Requirements in review, UML/YANG/JSON drafts available
• See https://github.com/OpenNetworkingFoundation/ONFOpenTransport
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Topology Service
Connectivity Service
Path Computation Service
Shared Network Information Context
Virtual Network Service
Notification Service
NE Network Resource Groups NE NE SDN Controller
NE NE SDN Controller NE NE Application
Transport API
Transport API
SBIs (e.g. Openflow Optical)
Englewood Open Source Project
• Bi-weekly Conference calls on Wednesday at 6am California time
• OSSDN Englewood community web page • https://groups.opensourcesdn.org/wg/ENGL
EWOOD/dashboard • Mailing list
• Documents
• Tasks
• Code submission on Englewood GitHub https://github.com/OpenNetworkingFoundation/Englewood
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Participation is open to anyone, not only to ONF/OIF Members Instance (e.g., ONOS, ODL)
T-API
PAL
APP1
Controller 3
Mapping
T-API interface adapter
Restful
Handler 3
APP2
Demonstration Plans Implementation Experience
• OIF/ONF Interop Demonstration • 2016/17 Interop in planning • Multiple carriers and vendors
expressing interest • Equipment in carrier labs
• Optical and Ethernet switch domains
• Variety of controllers • Heterogeneous network
• Higher level orchestration across domains
• Common T-API between orchestration and controller
2014 Demonstration
Summary
• Virtualization of the Optical/Transport Network • Standardized APIs to access transport services • Cooperating SDOs and Open Source development • Demonstration(s) planned