Transcript OIF Overview

Interoperability:
Key issue for carriers and ISPs
Interoperable Intelligent Optical Networking:
Key to future network services and applications
OIF Carrier Group
Carrier Participation
OIF Carrier Involvement
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Carrier’s integral members of OIF: OIF Carrier
Working Group
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Established in 2001 with charter to develop
requirements and guidelines for services and
functions to be supported by future optical
networking products
Guiding OIF work to address pressing issues within
carrier networks
Providing detailed requirements for developing
specifications
Carrier participation in other working groups
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Ensuring that technical solutions being developed
address network and service requirements
Contributing to technical solutions and
interoperability agreements
Intelligent Optical Network: Motivations
Distributed intelligence
(control plane)
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Mesh topologies
Dynamic network
reconfigurability
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Network is “database”
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New service enabler
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Scalability
Reduced carrier-specific management
system development
Technology reuse
Reduced capital expenditure – mesh
restoration
Reduced inventory and dependence on
forecasts
Improved customer service: reduced
provisioning times
Reduced management system
development costs
Accurate, real-time state information
Bandwidth on Demand
Optical VPNs
Scheduled connections
Intelligent Optical (Transport) Networks
Seattle
Portland
Manchester
Minneapolis
Cambridge
Detroit
Salt Lake
City
San
Francisco
NY
C
Phil
Wash
.DC
Chicago
Denver
Newark
Kansas
City
St Louis
Raleigh
Los Angeles
San Diego
Phoenix
Dallas
Atlanta
Austin
Orlando
Houston
Intelligent Optical Network Element
Tampa
Transport link
connection
provisioned
Ft.
Lauderdale
Control Plane Interfaces
User
Domain A
(OIF UNI 1.0 & 2.0)
Inter-carrier External
Network Network Interface
(E-NNI)
User
Domain Z
UNI
Service Provider A
Admin Domain
(OIF UNI 1.0 & 2.0)
Service Provider B
Admin Domain
I-NNI
Service provider 1
Intra-carrier External
Network Network Interface
(E-NNI)
(OIF NNI 1.0)
E-NNI
Domain A1
I-NNI
Domain A2
I-NNI
Internal-Network Network
Interface (I-NNI)
User to Network
Interface (UNI)
OIF Interoperability Agreements
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OIF develops interoperability agreements and
manages interoperability testing:
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Physical Link Layer
Networking
Networking agreements focused on UNI and intracarrier E-NNI
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UNI 1.0 interoperability agreement finalized
November 2001
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Interoperability event staged Supercomm 2001 and
OFC 2003
UNI 2.0 interoperability agreement in progress
NNI 1.0 interoperability agreement in progress
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Capabilities demonstrated in early interoperability
event OFC 2003
Network-to-Network Interface (NNI)
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NNI: interworking between “control domains” to
provide:
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Summarized topology and reachability information
across domains
Signaling for connection establishment, removal and
restoration
Immediate NNI applications:
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Interworking between (already deployed)
proprietary control planes
Scalability
Interworking different transport network technologies
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E.g., all-optical and opto-electronic
NNI 1.0 is scoped to intra-carrier E-NNI
•Different metro / core domains
•Different economics
•Different services
Intra-Carrier NNI
Metro-Core Example
Intercity
 Dissimilar control issues
 Different vendors
 Multiple profit centers
Metro
Metro
NNI
Customers
Optical User to Network Interface
(O-UNI)
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O-UNI: allows clients (e.g., IP routers) to
dynamically request bandwidth from the intelligent
optical network
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Signaling for connection establishment, modification,
deletion and query
No topology information exchanged between IP and
optical network
Potential UNI applications:
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Reduced operations overheads – simplified
provisioning of new IP router connectivity
New services: bandwidth on demand, optical Virtual
Private Networks (VPNs)
Integrated IP and optical failure recovery
mechanisms
O-UNI
Connection
request
UNI
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Optical
Network
Client requests new connection between client source and
client destination
Client sees optical network as a “cloud”
Optical network responsible for routing connection to client
destination
Conclusions
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Intelligent optical networking is a reality
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Implementation agreements and standards are
critical to future intelligent optical networks
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Large scale network deployments
End-to-end provisioning
Network-to-Network Interface (NNI)
Optical User to Network Interface (UNI)
Carrier participation ensures that developing
implementation agreements and standards meet
network and service requirements