Workshop on IPOptical Session 3 NTTs Broadband Access

Workshop on IP/Optical : Session 3 NTT’s Broadband Access Services and Deployment Experiences in Japan July 10, 2002 NTT Access Service Systems Laboratories Yoichi Maeda maeda@ansl. ntt. co. jp 1 (C)2002 NTT

Outline 1. Current Network Services in Japan Access services and Metro services 2. Standardization Trend of Optical Access System B-PON and G-PON 3. B-PON Trial and Deployment in NTT 4. Future issues and Conclusions 2 (C)2002 NTT

1. Current Network Services in Japan Access services and Metro services 2. Standardization Trend of Optical Access System B-PON and G-PON 3. B-PON Trial and Deployment in NTT 4. Future issues and Conclusions 3 (C)2002 NTT

Telecommunication Service Trend (Estimated) (Million Users) 80 PSTN 60 Internet (Fixed & Mobile Access) (2000. 3) Mobile Telephone 40 Broadband (FTTH/B + DSL + CATV) 20 ISDN Mar. , Mar. , 94 95 96 97 98 99 00 01 02 03 04 05 06 4 (C)2002 NTT

Broadband Access (FTTH, ADSL, CATV) (Million Users) 10 CATV 1 0. 1 Estimated broadband users at March, 2006 in e-Japan Strategy ADSL : CATV : Optical: ADSL Optical 695 Million 429 Million 773 Million (Estimated by Ministry of Public Management; http: //www. soumu. go. jp/joho_tsusin/eng/index. html) 0. 01 2001/3 2002/3 2003/3 2004/3 2005/3 2006/3 (Year/Month) 5 (C)2002 NTT

Architecture for IP Access Service in NTT Call congestion at switching system Time-dependent charge Local Node Access Networks POTS/ISDN Local Networks Content, Application POTS/ISDN Content, Application Dial-up connection ISP FLET’S ISDN FLET’S ADSL B-FLET’S Fiber ISP RAS Local IP network NTE ISP Content, Application The Internet Always ON connection Fixed charge Selection of multiple ISPs 6 Avoiding congestion (C)2002 NTT

Competition in IP Access Mass Service (JPY/month) : NTT FLET’S services : Other operators (including ISP charge) FTTH (Tokyo Electric Power Co. ) 10, 000 Optical Fiber Basic Type FTTH (Usen) 5, 000 Metallic Family Type FLET’S ADSL Condominium Type FLET’S ISDN 0 1 k ADSL (Yahoo! BB) L Mode 10 k B FLET’s series 100 k 1 M 7 10 M 100 M (bps) 1 G (C)2002 NTT

Service Lineup for Business Users in NTT Monthly charge (million JPY) 6 5 ATM Megalink (600 M) Super High speed (50 M, 150 M) Metro High Link ATM Megalink (45 M, 150 M, 600 M) (0. 5 M - 135 M) 1 0. 5 0. 1 0 Metro Ether (1 G) High Speed Digital (64 k - 6 M) Analog (2400 bps) Mega Data Nets (PVC : 64 k - 10 M) Metro Ether (100 M) DA 1500 DA 128 DA 64 100 k 1 M DA 6000 10 M 100 M 1 G (Connection distance between two points is 15 km. ) 8 (C)2002 NTT (bps)

Metro Area Services for Business Users Metro High Link (SDH Network) Metro Ether (Ether Network) SDH-Node Intensive office Gb. E-SW Central office Gb. E-SW MC MC 100 Mb/s MC User Intensive office Central office Gb. E-SW MC 100 Mb/s SDH-Node Central Office 1 Gb/s MC User ISP Core Router User 9 SDH Ring SDH-Node Central Office 45/155/622 Mb/s User (C)2002 NTT

1. Current Network Services in Japan Access services and Metro services 2. Standardization Trend of Optical Access System B-PON and G-PON 3. B-PON Trial and Deployment in NTT 4. Future issues and Conclusions 10 (C)2002 NTT

B-PON Standardization in ITU-T Scope of Q 2/SG 15 UNI TE ONT TE OSS ODN Optical Splitter ONT Scope of Q 14/SG 4 NNI OLT To Core Network Upstream Downstream ONT : TE : PON : Optical Network Terminal User terminal Passive Optical Network PON bit rate lineup Upstream 155 Mb/s 622 Mb/s 1. 244 Gb/s 2. 488 Gb/s OLT : Optical Line Terminal ODN : Optical Distribution Network Downstream 155 Mb/s 622 Mb/s 1. 244 Gb/s 2. 488 Gb/s 11 Broadband-PON Gigabit-PON (C)2002 NTT

Business Requirements for B-PON Business factors Low-cost and reliable products Competition with CATV providers Competition with CLEC’s ADSL Competition with Long Haul operators B-PON Requirements ITU-T Standards International standards compliances and multi-vendor interoperability G. 983. 1 G. 983. 2 Video signal overlay with 3 -waves multiplexing G. 983. 3. a DBA (Dynamic Bandwidth Assignment) to improve transmission efficiency of upstream signals G. 983. 4 G. 983. 7 Access line protection and survivability G. 983. 5 G. 983. 6 Enhanced OMCI (ONT Management and Control Interface) for new services G. 983. 2. a Adding 622 Mb/s upstream Future upgrade to 1. 2 Gb/s and higher G. 983. 1. a G-PON 12 (C)2002 NTT

Relationship in B-PON Standardization IEEE ATM-F 802. 3. EFM ETSI GE-PON IEC Communication ITU-T Liaison SG 15 (Q 2) SG 4 (Q 14) Liaison Optical access TMN SG 15(Q 16) CWDM SG 9 (Q 16) Video overlay Contributions Members FSAN (Full Service Access Networks) Initiative (21 operators + 20 vendors) 13 (C)2002 NTT

FSAN (Full Service Access Network) Members Eirecom Telia Verizon KT BT KPN Bezeq DTAG FT NTT Swiss. Com TI Bell Canada Chunghwa Sing. Telstra Telefonica Qwest Bell. South SBC Malta 21 Operators and 20 vendors as of June 2002 Agere Flex. Light INOVIA/ECI NEC/e. Luminant Terawave Alcatel Fujitsu Lucent Oki Zonu Broadcom Broad. Light Ericsson Hitachi Iamba Infineon Marconi Mitsubishi / Paceon Optical Solutions Quantum Bridge 14 (C)2002 NTT

New G-PON Standardization in ITU-T GSR (G-PON service requirements) Target Date : 1 / 2003 to be consented - Full services and Ethernet supporting - Same ODN requirements as B-PON GTC (G-PON Transmission Convergence layer) Target Date : 10 / 2003 to be consented GPM (G-PON Physical Medium Dependent layer) Target Date : 1 / 2003 to be consented Maximum commonality in the lower layer specifications between ITU-T and IEEE is expected to reduce the G-PON components cost. 15 (C)2002 NTT

Service Requirements for G-PON Items Target descriptions Services and Qo. S Full Services performances (e. g. 10/100 Base-T, Voice, Leased lines, ) Bit rates 1. 25 Gbit/s symmetric and higher. Physical reach Logical reach Max 20 km or Max 10 km Max 60 km (for ranging protocol) Max 64 in physical layer Max 128 in TC layer Branch number Video overlay in the downstream is considered Wavelength allocation Downstream: 1480 – 1500 nm Upstream: 1260 – 1360 nm ODN classes Class A, B and C ( Existing ODN requirements ) 16 (C)2002 NTT

G-PON TC Layer Options - Comparative analysis will be made by the FSAN members - One of the best solutions will be proposed to ITU-T from the members in FSAN ATM frame Generic frame Ethernet frame base Layer 5 or more POTS T 1/E 1 TDM Data POTS Video Vo. IP Layer 4 TCP+UDP etc. Layer 3 IP IP Ethernet Layer 2 AAL 1/AAL 2 Video Vo. IP TCP+UDP etc. Now being discussed in PWE 3 WG in IETF IP AAL 5 ATM cell Layer 1 T 1/E 1 TDM Data G. 983 base Generic frame G. 707 base Ethernet frame IEEE 802. 3 base PON-PHY 17 (C)2002 NTT

Harmonization in G-PON Standards ITU-T Q. 2/SG 15 G-PON (FSAN) Communication IEEE 802. 3 EFM Liaison person in SG 15; Dr. Frank Effenberger (Quantum Bridge) GE-PON GPM Common specs for PMD GTC - Down stream wavelength allocation - Physical layer specifications (except for line code and bit-rates) GSR PMD sub track P-MP sub track Operators requirements (ODN, Services) Operators 18 (C)2002 NTT

1. Current Network Services in Japan Access services and Metro services 2. Standardization Trend of Optical Access System B-PON and G-PON 3. B-PON Trial and Deployment in NTT 4. Future issues and Conclusions 19 (C)2002 NTT

B-PON Deployment for ATM Services Circuits 30, 000 ATM Mega-Link (SS and PON) 0. 5 – 135 Mb/s, CBR ATM Mega-Link ATM Share-Link 64 kb/s – 2 Mb/s, CBR 0. 5 – 10 Mb/s, GFR 20, 000 10, 000 0 Mega Data Nets 64 kb/s – 2 Mb/s, CBR with CUG 0. 5 – 10 Mb/s, GFR with CUG (CUG: Closed User Group) ATM Share. Link Mega Data Nets Mar. , 97 Mar. , 98 Mar. , 99 20 Mar. , 01 Mar. , 02 (C)2002 NTT

Access Configuration of B-FLET’S service Business Type NTT CO For Business users (40, 000 JPY/Month) E/O - Basic Type 100 Mbps For SOHO & heavy users E/O (9, 000 JPY/Month) For mass users (10 Mbps) ---(5, 000 JPY/Month) (100 Mbps) --(4, 300 JPY/Month) (NTT West) (5, 800 JPY/Month) (NTT East) Shared use by the group O/E - BRAS Network Terminal Equipment E/O 100 Mbps O/E BRAS (3, 500 JPY/Month) 21 ISP -A Local IP NW O/E E/O BRAS Network Terminal Equipment 10 Mbps or 100 Mbps Family Type Condominium Type 100 Mbps (C)2002 NTT ISP -B

155/622 M Broadband IP Access System Local IP NW PDS/ Ether-IF EMDX … … ONU … 100 BASE-TX OLT MAX: 32 Branches PDS/ Ether-IF ONU 100 BASE-TX or Gb-E 100 BASE-TX - Optimize for Ether-LC - Single ASIC for PON termination - 155/622 M B-PON (G. 983. 1 & G. 983. 2) - Shared access of upstream band using DBA function (G. 983. 4) NE-Op. S DCN -Service separation and multiplex function - VLAN tagging function - Guaranteed bandwidth and priority control functions Contents Delivery NW To Op. S Server PC: WEB Browser ・SNMP for NE-Op. S ・ 2000 units of NE is controlled. DCN: Data Communications Network 22 (C)2002 NTT

Joint Trial of NTT and Sky Perfec. TV! Objective: Verification of video signal overlay on B-PON Terms: March 2002 to February 2003 in Yotsuya, Tokyo The Internet CS Broadcasting Apartment equipped with broadband access ISP High-speed Internet (Max. 100 Mbps) B-OLT Each user 100 Mb/s Data Communication Video Transmitting Equipment Meguro Media Center Single Optical Fiber B-ONT 500 channels Video Distribution STB Central Office : Equipment installed by SPTV : Equipment installed by NTT 23 SKY Perfec. TV! (CS Broadcasting) (C)2002 NTT

1. Current Network Services in Japan Access services and Metro services 2. Standardization Trend of Optical Access System B-PON and G-PON 3. B-PON Trial and Deployment in NTT 4. Future issues and Conclusions 24 (C)2002 NTT

Trend of Broadband Access Studies Bit Rate (bps) 1 G 100 M 10 M LAN(SS) WDM-PON Carrier grading ? Gb. E-MC 600 M B-PON 100 M-Ether MC 150 M B-PON G-PON ing p lo ve De STM PON ed p lo IEEE 802. 3 FSAN, ITU-T ve e D 1 M ed p elo v De 100 k ADSL 1998 2000 2001 2002 25 2003 2004 Year (C)2002 NTT

NTT’s approach for G-PON ITU-T FSAN IEEE - Initiative holder Carriers - Main companies NTT, SBC, Bell. South, BT, FT, TI, etc. Task forces for G-PON Input of carrier’s requirements - ODN - Target services - OAM - Initiative holder Vendors - Main companies Cisco, Nortel, Intel, Lucent etc. EFM Study Group For GE-PON established in Jan. , 2001. established in April, 2001. EFMA supports the EFM study group EFMA (EFM Alliance) NTT contributes to FSAN & ITU-T. established in Dec. , 2001. NTT joined EFMA as the first alliance members. 26 (C)2002 NTT

Features of CWDM Access System - Multiplexes all kinds of services (SDH, Ethernet, FC) - Wide wavelength band CWDM - Cost effective un-cooled DFB module - Low cost WDM filter - Flexible and high reliable system 1000 Wavelength spacing (nm) 100 2 wave 1. 3/1. 5 -WDM 4 - 16 wave CWDM: Coarse WDM DWDM: Dense WDM 20 10 CWDM (G. 694. 2) - 1000 wave 1 DWDM (G. 694. 1) 0. 1 0. 6 0. 8 1. 0 1. 2 1. 4 Wavelength (um) 27 1. 6 1. 8 (C)2002 NTT

Conclusions Competitive IP access services for mass users in Japan Broadband access services based on optical fibers Future service integration of communication and broadcasting on an optical fiber using B-PON Maximum commonality in G-PON specifications between ITU-T and IEEE Future access systems using CWDM 28 (C)2002 NTT

Thank you The beckoning cat, Maneki Neko, brings Luck. 29 (C)2002 NTT

Appendix ITU-T B-PON Standards and the outlines 30 (C)2002 NTT

List of ITU-T Recommendations on B-PON Number Title Date G. 983. 1 Broadband optical access systems based on Passive Optical Networks (PON) 10 / 1998 G. 983. 1. amd 1 Broadband optical access systems based on Passive Optical Networks (PON) amendment 1 12 / 2001 G. 983. 2 r The ONT Management and Control Interface Specification for ATM-PON 4 / 2000 5 / 2002 G. 983. 3 A broadband optical access system with increased service capability by wavelength allocation 4 / 2001 G. 983. 3. amd 1 A broadband optical access system with increased service capability by wavelength allocation amendment 1 5/ 2002 G. 983. 4 A Broadband Optical Access System with increased service capability using Dynamic Bandwidth Assignment 12 / 2001 G. 983. 5 A broadband optical access system with enhanced survivability 1 /2002 G. 983. 6 ONT management and control interface specification for B-PON system with protection features 5 / 2002 G. 983. 7 ONT management and control interface specification for DBA B-PON system 12 / 2001 Q. 834. 1 ATM-PON requirements and managed entities for the network element view 4 / 2001 Q. 834. 2 ATM-PON requirements and managed entities for the network view 4 / 2001 Q. 834. 3 A UML description for management interface requirements for broadband passive optical networks 12 / 2001 31 (C)2002 NTT

B-PON Basic Recommendations G. 982 (PON requirements and ODN definition) Date : 11 /1996 approved G. 983. 1 (Physical layer specifications) Editor : B. Ford (Bell. South) Date : 10 /1998 approved G. 983. 1. amd 1 (Add 622 Mbit/s upstream) Editor : F. Effenberger (Quantum Bridge) Date : 12 /2001 approved Physical Interface specifications between OLT and ONT Service and functional requirements for B-PON system Physical Medium Dependent layer specs. (e. g. Optical parameters) Transmission Convergence layer specs (e. g. Frame structure and protocol) Multi-vendors interoperability ONT ONT OLT ODN 32 (C)2002 NTT

B-PON OMCI Recommendations G. 983. 2 (Basic OMCI specifications) Editor : Y. Maeda (NTT) Date : 4 / 2000 approved G. 983. 2 amendments and revision Editor : J. Lorentzen (SBC) Date : 12 / 2001 approved for amendments 5 / 2002 consented for revised Recommendations 1 / 2003 to be consented for additional new services OMCI : ONT Management and Control Interface Commands ONT OLT ONT Responses or alarms 33 (C)2002 NTT

B-PON WDM Recommendations G. 983. 3 (Wavelength allocation for additional services) Editor : T. Sato (NTT) Date : 4 /2001 approved G. 983. 3. amd 1 (Adjustment for 622 Mbit/s upstream) Editor : K. Nakanishi (NTT) Date : 5 /2002 consented 1260 -1360 nm for upstream and 1480– 1500 nm downstream wavelength allocation becomes a common PON standard Upstream 1200 1260 1300 Future Band 1360 1400 Enhancement Band Future Downstream Band 1480 1500 for Video Use 1600 (1550 -1560) for Digital Use (1539 -1565) 34 (C)2002 NTT

B-PON DBA Recommendations G. 983. 4 (Dynamic bandwidth assignment protocol) Editor : B. Ford (Bell. South) Date : 12 /2001 approved G. 983. 7 (OMCI for DBA ) Editor : S. Karasawa (Oki) ONT-A Date : 12 /2001 approved Dynamic granting ONT-B OLT ONT-C ONT-D Sharing Bandwidth 35 Occupying Bandwidth (C)2002 NTT

B-PON survivability Recommendations G. 983. 5 (Survivability mechanism) Editor : H. Ichibangase (Mitsubishi) Date : 1 /2002 approved G. 983. 6 (OMCI for survivability) Editor : J. Lorentzen (SBC) ONT#1 LT ONT#2 ・ ・ ONT#n LT Date : 5 /2002 consented ONT#1 OLT LT ONT#2 ・ ・ LT LT ONT#n LT LT OLT LT Type C (Duplicated PON) Type B (Duplicated OLT) 36 (C)2002 NTT