opticalinternetworkingforum oif technical committee and its activities joe berthold, ciena,...

OPTICAL•INTERNETWORKING•FORUM

OIF Technical Committee

and Its Activities

Joe Berthold, Ciena,

Technical Committee Chair


Role of Technical Committee Develop specifications to ensure Interoperability of

Optical Internetworks• Charter Working Groups• Approve Working Group Projects

Technical work is driven by contributions


Contributions Technical committee work is driven by contributions

• 1998 - 37 contributions• 1999 - 73 contributions


Relationship toStandards Bodies OIF seeks to leverage and complement the work

of standards bodies• IETF, ATM Forum for data networking standards• T1 (US) and ITU for SONET/SDH and the

Optical Transport Network, OTN


Technical Committee Structure

Architectural Workshop Group

Rick Barry, Sycamore Networks - Chair OAM&P

Working Group

Curtis Brownmiller, MCI Worldcom - ChairPhysical and

Link Layer Working Group

Sid Chaudhuri, AT&T - Chair

Technical Committee

Joe Berthold, Ciena - Chair

Drew Perkins, Ciena - Vice Chair


Architecture Working Group Charter Solicits and analyzes requirements from service

providers and develops an architecture to meet those requirements.

Includes concept, definition, analysis and documentation of architectural matters


Physical and Link Layer Working Group Charter Specifies Implementation Agreements related to

physical and data-link layer interfaces between Optical Internetworking elements

Defines the transport mechanisms necessary to support OAM&P functions

Includes the concept, definition, analysis, and documentation of matters related to the interconnection of Optical Internetworking Signals


OAM&P Working Group Charter Develops operations, maintenance, administration

and provisioning requirements, guidelines and Implementation Agreements related to Optical Internetworking including:

Planning, engineering and provisioning • OAM&P processes• Operations support systems


Interoperability Focus Areas Architectural models Protection and restoration

• Architectures• Interlayer Coordination

Network management Signal interfaces between data network elements

and optical network elements System physical layer interfaces


OIF Initial ScopeApproved January 1999

The OIF’s first implementation agreement will specify a set of protocols for packet/cell based communications over optical channels utilizing SONET/SDH* framing and other protocols to be determined.

*This does not preclude the use of other protocols in the future


Simple Reference ModelOptical

SubnetworksData

Networking Element

Data Networking

Element

Open Interfacessingle

optical channel


Projects: Architecture WG Optical Internetwork Requirements

and Applications Optical Internetwork Architecture:

functions and reference models IP Transport via SONET Framed and

Rate Signals through Optical Internetworks Architectures for protection

and restoration


Projects: Physical & Link Layer WG Develop interfaces based on POS at

155 Mb/s, 622 Mb/s, and 2.5 Gb/s Develop a 10 Gb/s interface based

upon SONET/SDH standards Develop a lower-cost 10 Gb/s interface

for intra-office data applications Develop a system interface to

physical layer modules


Projects: OAM&P WG None currently approved


Physical Layer Interfaces SONET/SDH based physical layer

• Interoperability with current networks• Fault, performance management features• Widely available components

Packet mapping: follow IETF


Premises InterfacesBackbone Network Node

DataEquipment

OpticalBandwidth

Management

DWDMTransmission

Links into the wide area network

Number of high speed premises interfaces may

equal or exceed number of wide area interfaces.

Efficient premises interfacesessential as capacity scales


System Interface to Physical Layer

ExternalOptical

Interface

System PhysicalInterface

Physical Layer Module


Summary Started with simple, important choices

• SONET/SDH based 2.5G and below• SONET/SDH based 10G

Working tougher issues in parallel• Architectural models• Protection and restoration• Network management• Low cost premises options for 10G

opticalinternetworkingforum oif technical committee and its activities joe berthold, ciena,...

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