ITU-T Study Group 15 Peter Wery Chairman SG 15 12/5/2018

PROC. IEE Vol. 113, No. 7, JULY 1966

36 years later... A limiting factor at present with the fibre guide is that the best readily available low-loss material has a loss of about 1000 dB/km. However, it is foreseen that the present material can be improved, and our team have indications that materials having losses of only tens of dB/km should be forthcoming. Geoffrey Charlish, 26.1.1966

This Presentation SG 15 overview Lead Study Group activities Current challenges Expected Workshop results 12/5/2018

This Presentation SG 15 overview Lead Study Group activities Current challenges Expected Workshop results 12/5/2018

Responsibility and Mandate Focal point in ITU-T for studies on optical and other transport networks, systems and equipment. This encompasses the development of transmission layer related standards for access, metropolitan and long haul sections of communication networks. Lead Study Group on: Access Network Transport (ANT) Optical Technology 12/5/2018

SG15 Objectives Focal point for global standards on Transport Networks Market driven and timely standards in major work areas ‘Value-added’ coordination and cooperation effort Support ITU-T as preeminent Internat. Stds. Organization Promote SG 15 standardization activities 12/5/2018

Standards driven by market needs Multi-Megabit/s and Gigabit/s network access Internet TV distribution and interactive Terabyte/s in metropolitan and long haul transport Optical Internet DWDM, CWDM Cost reduction, Scalability, Service Velocity Switched Optical Network End-to-end wavelength services 12/5/2018

Organization SG 15 - Optical and other Transport Networks WP 1 - Network Access WP 2 - Network Signal Processing WP 3 - OTN Structure WP 4 - OTN Technology WP 5 - Projects and Promotion 12/5/2018

Some statistics Work Program (Questions for study) 19 Recommendations under development Approx. 80 - 90 Study Group meeting interval Approx. 8 months Rapporteur Group meetings Frequently Work by correspondence (EDH) Continuous Approval procedure AAP Rapporteurs 19 Editors Approx. 65 SG Representatives etc. 9 SG meeting participants (Avrg. 97-00/01-02) 347/302 Number of countries (Admin. and/or ROA) 39/26 Number of Scient. & Indust. Orgs. (SIO) 74/75 12/5/2018

Major work areas Access network Broadband optical access Refinements & enhancements xDSL Home networking (data on in-premises wiring) ANT standardization and work plan Network signal processing CME in IP based networks Enhancements Echo Cancellers Equipment for GSTN and IP interconnection Interaction of signal processing 12/5/2018

Major work areas (cont’d) Optical Transport Network (OTN) structure Automatic Switched Optical Network (ASON) Architecture and interfaces for the OTN Optical Cross-Connect and Switch functions Network management and control OTN technology (terrestrial and submarine) Coarse and dense WDM, STM-256 signal channels Optical components & amplifiers (e.g. tunable filters) Fiber characteristics, more channels/fiber Transmission technology (Soliton/RZ), long reach 12/5/2018

Major work areas (cont’d) Projects and promotion Lead SG activities (Projects) Access Network Transport Optical Technology Establish/maintain links inside and outside ITU-T Promotion tools SG 15 Web Site, public access Workshops, seminars Press Releases Brochures Tutorial material 12/5/2018

Communication, Cooperation Key SG 15 communication and cooperation partners: Organization Technical area/Topic ATM Forum Traffic & network management DSL Forum Access network TM Forum Network management ATIS T1 Access network, SONET/SDH, OTN ETSI Access network, SDH ISO/IEC Optical fibers, components ISOC/IETF Optical transport network Network signal processing TIA, OIF Optical networks & technology IEEE Ethernet 12/5/2018

This Presentation SG 15 overview Lead Study Group activities Current challenges Expected Workshop results 12/5/2018

WTSC/WTSA Appointments World Telecommunication Standardization Conference 1996 (WTSC 96) Appoints SG 15 as Lead Study Group on Access Network Transport In addition World Telecommunication Standardization Assembly 2000 (WTSA 2000) Lead Study Group on Optical Technology 12/5/2018

Lead Study Group activities (Projects) Mandate Define, maintain overall framework (other SGs, SDOs, Forums/Consortia) Own Questions Coordinate, assign and prioritize work in other SGs Consistent, complete, timely standards Implementation Standardization Plan (who, what, when) Work Plan (holes, lack of progress, priorities) Provide ‘value added’ 12/5/2018

Lead Study Group activities (Projects) (cont’d) Access Network Transport Standardization and Work Plan established ANT Standardization & Work Plan Continuous updating Road mapping future growth & requirements to year 2010 Optical Technology Optical Transport Networks & Technologies Standardization Work Plan Mapping of ASTN, GMPLS and OIF terminology Description of Metropolitan Optical Network (MON) Web based presentation planned 12/5/2018

ANT Standardization Plan Content Introduction 1. Scope 2. References 3. Definitions 4. Abbreviations 5. ANT Reference Model 6. ANT functionality 7. ANT Interfaces 8. ANT Transmission characteristic 9. Access Network Elements functionality 10. ANT Scenarios 11. Overview of existing standards and activity Annex 1: Reference Scenarios for Correlation of Standards Annex 2: ANT-Relevant Standards Annex 3: List of Abbreviations 12/5/2018

ANT Standardization Plan (cont’d) Scenario 4 – Fiber access Physical representation Logical representation 12/5/2018

OTNT Standardization Work Plan Content (status May 2002) 1. General 2. Introduction 3. Scope 4. Abbreviations 5. Definitions 6. OTNT Correspondence and Liaison tracking 7. Overview of existing standards and activity 8. Overview of existing holes, overlaps, conflicts Annex A – Terminology Mapping (ASTN, GMPLS, OIF) Annex B – Other OTNT related organizations Annex C – Re-numbering of ITU-T Recommendations 12/5/2018

OTNT Standardization Work Plan (cont’d) Global Optical Transport Network Supporting Today's and Future Services OTN IrDI OTN IrDI OTN IaDI OTN NE USER NE OTN NE OTN IaDI USER NE OTN NE OTN IaDI SDH STM-N Carrier Domain A Carrier Domain B User/carrier may originate/terminate the OTN framing for any digital payload (IP, ATM, SDH,,,) IaDI = Intra-Domain Interface IrDI = Inter-Domain Interface NE = Network Element Interfaces:For single/multichannels with performance monitoring 12/5/2018

OTNT Standardization Work Plan (cont’d) Standardization areas covered OTNT (variety of aspects) SDH & SONET OTN Transport Plane ASTN/ASON Control Plane 12/5/2018

OTNT Standardization Work Plan (cont’d) Standards organizations referenced & referred to: ITU-T (SG 4, 13 15) ANSI T1X1 TIA FO-2 ISO/IEC Subcomm. 86A IETF Sub-IP Area IEEE 802.3 OIF ATMF 12/5/2018

This Presentation SG 15 overview Lead Study Group activities Current challenges Expected Workshop results 12/5/2018

OTNT related work in progress Gigabit-capable Passive Optical Networks (PON) Network protection and restoration Metropolitan Optical Networks OTN management Information Model (Protocol neutral and specific) ASTN/ASON ASON enhancements Distributed call and connection management (Protocol neutral and specific) 12/5/2018

OTNT related work in progress (cont’d) OTN Technology Non-zero dispersion fibers for wideband transport 40Gbit/s, 80 km, single channel system CWDM applications Transverse compatibility Optical system design, terrestrial and submarine (Supplements) In total approx. 60-70 draft new/revised Recommendations 12/5/2018

Some open issues Bottleneck network access  Fiber to the home Inconsistent OTN terminology in industry and SDOs Optical Supervisory Channel (diff. interpretations) Optical performance monitoring Ethernet and OTN interworking Ethernet in the first mile  PON Ethernet in Metropolitan Optical Networks Ethernet over Transport Network Architecture IP directly over fiber Optical Virtual Private Networks (OVPN) 12/5/2018

This Presentation SG 15 overview Lead Study Group activities Current challenges Expected Workshop results 12/5/2018

Expected workshop results Increased awareness, cooperation & delineation of standards activities Scope of standards Confirmation; Reassessment New topics, areas for standardization Revised/new Questions; Work Plan Prioritization Market needs; Time lines Other action items 12/5/2018

SG 15 Web Site http://www.itu.int/ ITUT/studygroups/ com15/index.html 12/5/2018

SG 15 Web Site (cont’d) 12/5/2018