部内資料

Size: px
Start display at page:

Download "部内資料"

Transcription

1 - OERIEW OF DIGITAL SBSCRIBER LINE (DSL RECOMMENDATIONS THE TELECOMMNICATION TECHNOLOGY COMMITTEE

2

3 (DSL JTG995.

4 IT-T TTC G JT-G992.1( G JT-G992.2( G JT-G994.1( G JT-G996.1( IT-T G.991.1( G.992.1, G.992.2, G.997.1( G Annex H G.991.2,G.994.1, G.996.1( JTG995.

5 DSL xdsl IT-T G.991.1G.992.1G.992.2G.994.1G G B1Q ADSL ATM AT AT-C AT-R C CAP CO CPE DLL DSL 2 Binary 1 Quaternary Asymmetric Digital Subscriber Line( Asynchronous Transfer Mode ( ADSL Transceiver nit(adsl ADSL Transceiver nit-central Office End ( ADSL ADSL Transceiver nit-remote End ( ADSL Common circuitry ( Carrier-less Amplitude and Phase ( Central Office ( Customer Premises Equipment ( Digital Local Line ( Digital Subscriber Line ( 4 JTG995.

6 GII H HDSL h-p HSS-TC HST HST-C HST-R I ISDN ISP l-p LT M MPS-TC NT2 NT PHY PMD PMS-TC POTS REG SM SNI STM TA TC TCM TPS-TC XT XT-C XT-R Global Information Infrastructure HDSL transceiver (HDSL High-speed Digital Subscriber Line ( high-pass ( Hand Shake Specific-Transmission Convergence ( Handshake Transceiver nit ( Handshake Transceiver nit-central office end ( Handshake Transceiver nit-remote end ( Interface ( Integrated Services Digital ( Internet Service Provider Low-pass ( Line Termination nit ( Mapping ( Management Protocol Specific-Transmission Convergence ( Termination 1 ( 1 Termination 2 ( 2 Termination nit ( Physical Layer ( Physical Media Dependant Physical Media Specific-Transmission Convergence ( Plain Old Telephony Service ( Regenerator ( Service Module ( Service Node Interface ( Synchronous Transfer Mode ( Terminal adapter ( Transmission Convergence ( Time Compressed Multiplex ( Transport Protocol Specific-Transmission Convergence ( Access Interface ( xdsl Transceiver nit (xdsl xdsl Transceiver nit-central Office End ( xdsl xdsl Transceiver nit-remote End ( xdsl DSL G.992.1G.992.2G.991.1G.991.2G.996.1G G G.991.1G.991.2G G G.994.1G G G G JTG995.

7 DSL 5.8 G (ADSL G (AT-R (AT-CADSL 2 1 AT-R AT-C ADSL ( G ADSL ADSL G Mbit/s 640kbit/s 2 I G I II II G ADSL - (POTS ADSL - G.961 I II ISDN ADSL ADSL ISDN ISDN - (POTS G.961 III ISDN ADSL - ( ( G AT-C AT-R - AT-C AT-R AT-R - ATM - 6 JTG995.

8 - G.961 I II ISDN - G.961 III ISDN - IT-T G.961 TCM-ISDN SSDSL TCM-ISDN 32kbit/s 192kbit/s 1.6Mbit/s 1.544Mbit/s STM G AT-C AT-R STM (ATM - G G G G G G AT-C AT-R ADSL ( 2 G G ADSL G Mbit/s 512kbit/s G AT-C AT-R - AT-C AT-R AT-R - ATM 7 JTG995.

9 - - CPE CO - AT-R - ; - G.961 III TCMISDN - G.961 I II ISDN G G G G (HDSL HDSL HDSL kbit/s kbit/s kbit/s 1 G B1Q CAP G kbit/s 2B1Q A kbit/s G.704 CAP B G HDSL HDSL HDSL G G HDSL 8 JTG995.

10 G DSL G a b DSL c DSL d DSL e f G G.992.x eoc ADSL G G.99x G G G G G JTG995.

11 DSL G.992.1G.992.2G G G G G G G G G G G kbit/s kbit/s kbit/s G kbit/s G Mbit/s 640kbit/s G Mbit/s 512kbit/s G G G G G G.991.2,G G G G G G.991.1G G G G G G G G G G G G DMT G B1Q CAP G G DMT G G G G G G G IFFT FEC G G.961 III TCM-ISDN G G TCM-ISDN C TCM-ISDN G H G H G C TCM-ISDN DMT G C G H G G T1 E1 10 JTG995.

12 2 POTS ISDN G kbit/s G kbit/s G G G TC-PAM G B1Q CAP G.992.x 1 DSL G G.992.x DSL G G G G G G DSL G G G G G G.99x G G G G G.990 G G G.992.x eoc ADSL G G G eoc G.992.x ( G G.99x 2 1 I.410 N-ISDN 6.1 G.99x I.411 N-ISDN xdsl Access Management Core SNI Q Access 1 T NT2 S TA G.99x R ser Terminal T ( JTG995.

13 ( 4 2(NT2 5 (TA 6 7 Q ( Q ( T ( T ( ATM T/ NT2 T S NT2 ( ATM NT2 /2 NT NT NT TA G.99x 2 ( ( ( 1 DSL ( G JTG995.

14 Core SNI Access T NT2 S W TA R ser Terminal Broadband network P H Y -C AT-C NT AT-R T-R P H Y T/S Customer Premise network SM Narrow-band network GSTN or ISDN -C 2 h p l p Splitter C -C -R h p l p Splitter R -R 2 POTS or ISDN service SM Telephone set voiceband modem, or ISDN terminal T ( Signal lines Interfaces 2 G G ADSL 1 ( 2 ADSL : 1 ADSL (AT-C 2 POTS ADSL POTS 3 ADSL 1 ADSL (AT-R 2 / 3 4 ADSL-NT2 G T ( -C-R-CT-R -C -R G R -C -C T-R -C (STM ATM 13 JTG995.

15 -C T-R ( AT-C AT-R -C2 -R2 -C -R ( SONET/SDH -C T/S G T-R T/S ADSL-NT( NT2 3 1 G Core SNI Access T NT2 S TA R ser Terminal Broadband network P H Y -C AT-C NT T-R AT-R P H Y T/S Home network SM -C 2 h p SM Narrow-band network GSTN or ISDN h p l p Splitter C -C -R Home POTS wiring -R l p (optional Telephone set voiceband modem, or ISDN terminal T ( Signal lines Interfaces G G G POTS POTS POTSISDN G G R2 G G JTG995.

16 ser Terminal R S T Access TA NT2 SNI Core HDSL Core Access Digital Section Application Interface Customer side I M C H DLL REG DLL H C M I Application Interface NT ( Termination nit NOTE 1 LT (Line Termination nit T ( C H I M REG DLL = =HDSL = = = = 1 HDSL G HREG DLL 2: REG 4 G HDSL 4 HDSL (H HDSL (DLL kbit/s2 1168kbit/s kbit/s HDSL ( (C HDSL HDSL HDSL (REG HDSL (I (M (LT ( (NT ( HDSL HDSL 15 JTG995.

17 5 1 G S R T ser Terminal TA NT2 Access Core SNI ser Terminal T/S -R -C -R -C -R -C DLL DLL DLL ST-R SR ST-C CO ser Terminal T/S (Optional T ( (Optional 5 G G SHDSL DLL SHDSL SR ST-C ST-R ST-C 1 SHDSL SR ST SR DLL ST- SR -R -C ST-C ST-R NT2 ST-R 1 T/S 6 1 G JTG995.

18 Core SNI Access T NT2 S TA R ser Terminal HST-C HST-R T/S ser Terminal CO Line Circuit -C2 -C -R -R2 Splitter Loop Plant Splitter POTS Set G T ( G G.992.1/G G G ( (HSTG G G HST-C HST-R NT2TA HST-R 7 1 G JTG995.

19 Access Management Q Core SNI Access T NT2 S TA R ser Terminal Q AN Management Entity NT Management Entity TE Broadband P H Y XT-C Loop Plant XT-R P H Y Home TE -C -C -R T-R T/S Management Interface in G.ploam T ( G G G G G xdsl (XTG G G (AN NT Q AN NT XT-R NT2TA 8 1 G JTG995.

20 Core SNI Access T NT2 S TA R ser Terminal XT-C XT-R CO Line Circuit -C2 -C -R Home POTS Wiring -R2 Splitter Test Loop Splitter G POTS Set T ( G G G XT G.992.1G G.99x POTS 2 ( G XT-CPOTS POTS POTS XT-R G.99x 9 DSL 19 JTG995.

21 , NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM TPS-TC TPS-TC PMS-TC PMS-TC PMD PMD Prem. Wiring γ-r γ-c β α Physical Transmission Media Transport Protocol (e.g. ATM TPS-TC PMS-TC Private PMD Internal Interface S/T LT Internal Interface T ( : TPS-TC PMS-TC LT R C ( ATM xdsl ( ADSL T-R-C ( AT-C AT-R PMDTPS-TC PMS-TC OSI 3 (LT AT-C NT2/1 AT-R T/S / LT T / NT2 S / 10 G G JTG995.

22 , NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM γ-r γ-c Transport Protocol (e.g. ATM TPS-TC TPS-TC β α TPS-TC PMS-TC PMD PMD PMD Private Premises Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T ( G G G G PMD PMS-TC 2 1 PMD PMD G G G.991.1, NT2/1 AT-R AT-C LT Transport Protocol (e.g. ATM γ-r γ-c Transport Protocol (e.g. ATM TPS-TC PMS-TC PMD PMD1 TPS-TC PMD2 β α PMD1 TPS-TC PMD2 Private Prem. Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T ( G PMD G JTG995.

23 , NT2/1 ST-R ST-C LT Transport Protocol (e.g. SDH Not Specified ser Data Interface TPS-TC PMS-TC PMD γ R γ C β α Physical Transmission Media TPS-TC PMS-TC PMD Transport Protocol (e.g. SDH Not Specified Internal Interface S/T LT Internal Interface T ( G G PMD PMS-TC PMS-TC ST-C ST-R TPS-TC TPS-TC SHDSL TPS-TC r c TPS-TC r c G JTG995.

24 AT-R AT-C HSS-TC PMD Physical Transmission Media HSS-TC PMD T ( G G G G G PMD (HSS-TCG G G G G.992.1G G G.99x G.997.1, NT2/1 AT-R AT-C LT Management Protocol (s Management Protocol (s MPS-TC TPS-TC TPS-TC MPS-TC Private PMS-TC PMS-TC Private PMD PMD Prem. Wiring Physical Transmission Media Internal Interface S/T LT Internal Interface T ( G.99x 14 MPS-TC 4 PMD PMS-TC( AOCEOC 23 JTG995.

25 (MPS-TC( SNMP TPS-TC( ATM G ISDN RST CPE ISP CPE-CPE GII 2 NT2 15 G.902 GII G G (Access Section - Management Q N-ISDN Reference Points R S T T Terminal Equipment TA NT2 Access Core Access ISP SNI ISP SNI T ( G.902 GII Reference Points xdsl 24 JTG995.

26 T 16 T T TE Access Core Access ISP SNI ISP SNI T ( T G ISDN T TE NT2 TA 17 G JTG995.

27 Q Access Node TE Service Splitter Copper Plant Service Splitter LT Phone T -R -C PSTN T ( T G G Q Phone Optional Low pass Filter Access Node TE Copper Plant Service Splitter LT Phone T -R -C PSTN T ( T G T TE Access Core Access ISP SNI SNI ISP T ( JTG995.

28 G TE (GII TE T TE NT2 ( TA 20 G Q Access Node TE Service Splitter Copper Plant Service Splitter LT Phone -R -C PSTN G T ( G TE (GII TE T TE B-NT2 ( TA 21 G Q Phone Access Node S TE Copper Plant Service Splitter LT Phone -R -C PSTN T ( G JTG995.

29 DSL : β γ-c γ-r ( / ( / XDSL ( ADSLT-R-C XDSL ( ADSLT-R-C ADSL Crceocaoc OAM FEC ADSL AS0 OAM crceoc FEC AT-C AT-R ADSL I II DMT (IDFT 1 {ZI} DMT {xn}(idft {ZI} (=4 kbaud AT-C AT-R DSL IT-T G.991.1G.992.1G.992.2G.994.1G.996.1G Sum(Bf>0 Sum(Bi>0 FEC OAM G G JTG995.

30 LS0 DSL AT-R AT-C G AT-C AT-R ( 1 1 Sum(Bf>0 Sum(Bi>0. SNI (SNI (ADSL ( POTS POTS IDFT Zi 68 1 ((69/68*4.0=4.0588kbaud AOCeoc IB DMT FEC G [ACK](1 (NAK AT-R AT-C 04kHz kHz POTS POTS xdsl 29 JTG995.

31 1 G G.961 ISDN (2B+D144kbps G (HDSL 4 G (SHDSL 5 G (ADSL G (ADSL G (DSL G (DSL G (DSL I.411 ISDN JTG995.

<参考>

<参考> B-ISDN User-Network Interface - Physical Layer Specification for 25600kbit/s 1.1 2002 3 1 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE ... 3... 4 1.1... 4 1.2... 4 kbit/s... 4 2.1... 4 2.1.1... 4 2.1.2...

More information

橡A little bit faster line to the home

橡A little bit faster line to the home A little bit faster access line to the home - xdsl Internet Access - JANOG6 in 2000/6/16 xdsl DSL = Digital Subscriber Line (ADSL) 6Mbps (ADSL Annex.A G.dmt) 2000/6/16 A little bit faster access line to

More information

PowerPoint プレゼンテーション

PowerPoint プレゼンテーション / 7 OSI7 Application protocol 6 Presentation protocol 5 Session protocol 4 Transport protocol 3 2 1 : Network Layer Host-Router Protocol (e.g., ES-IS),,: (e.g., IS-IS,NNI,) : Data link Layer Host-Router

More information

Recommendation M

Recommendation M - TMN management services and telecommunications managed areas: overview 1.0 2002 5 30 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 2 3 1997 ITU-T M.3200) ITU-T M.3010 (1996 ) (2000 )( JT-M3010 2.0 ) TTC

More information

Flow Control Information Network 1 /

Flow Control Information Network 1 / (2) Suguru Yamaguchi Nara Institute of Science and Technology Department of Information Science Flow Control Information Network 1 / 2012 2 Flow Control DLL : Automatic Repeat Request (ARQ) Stop-and-wait

More information

JT-G9931

JT-G9931 超高速ディジタル加入者線 (VDSL) Very high speed digital subscriber line 第 1 版 2005 年 11 月 24 日制定 社団法人情報通信技術委員会 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 本書は ( 社 ) 情報通信技術委員会が著作権を保有しています 内容の一部又は全部を ( 社 ) 情報通信技術委員会の許諾を得ることなく複製

More information

- Principles for a Telecommunications management network 2.0 2001 11 27 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 2 JT-M3010 ...19...20...20...20...20...21...22...23...24 3 JT-M3010 ...26...28...29...34...34...35...35...37...37...37...37...37

More information

2/ PPPoE AC(Access Concentrator) PPPoE PPPoE Ping FTP PP

2/ PPPoE AC(Access Concentrator) PPPoE PPPoE Ping FTP PP PPPoE HATS LAN 2/31... 4... 4... 5... 6... 6... 7... 8... 8... 9... 10 PPPoE... 10 AC(Access Concentrator)... 10...11 PPPoE... 11 PPPoE... 13 Ping... 13 FTP... 14 PPPoE... 14... 15... 15 3/31... 17 PPPoE...

More information

2011 I/ 2 1

2011 I/ 2 1 2011 I/ 2 1 ISO 7 layer reference model TCP/IP ISO 7 layer reference model 5 7 2011 I/ 2 2 2011 I/ 2 3 OSI 7 Layer Reference Model 2011 I/ 2 4 Harry Nyquist (1924) Maximum data rate = 2H log 2 V (bits/s)

More information

(1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Comm

(1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Comm I / 6 1 1. HDLC I / 6 2 (1) CCITT X.25 (HDLC/LAPB) SDLC (Synchronous Data Link Control protocol) HDLC High-speed Data Link Control protocol ITU-T/ISO ADCCP Advanced Data Communication Control Protocol

More information

( ) )

( ) ) ( ) ) (SM/MM) (UTP TP USB RSC232- C ) RJ11, RJ45, ST, SC MIC (AM, FM) ( * ) (NRZ ) P2P ( - )! ( ) & TDM( )/FDM( ) ( ) ( ) / ( ) (IP) (*) vs RADIUS ( ) (CDN Grid) ( ) (1) ( ) HTML XML VRML MPEG AVI JPEG

More information

untitled

untitled IT IT IT IT 1 IT 2 Software as a Service (SaaS 3 ) IT SaaS 4 SaaS SaaS PC SaaS SaaS Web SaaS ID IT SaaS IT 1 2 3 Software as a Service ASP(Application Service Provider) SaaS 4 ASPIC SaaS SaaS SaaS SaaS

More information

2/ PPPoE... 9 AC(Access Concentrator) PPPoE PPPoE Ping FTP PPPoE

2/ PPPoE... 9 AC(Access Concentrator) PPPoE PPPoE Ping FTP PPPoE PPPoE HATS LAN 2/27... 4... 5... 5... 6... 7... 7... 8... 9 PPPoE... 9 AC(Access Concentrator)... 9... 10 PPPoE... 10 PPPoE... 11 Ping... 12 FTP... 12 PPPoE... 12... 14... 14... 16 PPPoE... 17 3/27 PPPoE...

More information

PPPoE HATS LAN

PPPoE HATS LAN PPPoE HATS LAN 2/26... 4... 5... 7... 9... 10... 13 3/26... 20... 22... 25... 26 4/26 PPPoE ADSL PPPoE ( )AC(Access Concentrator ) NAT 5/26 ( )AC( ) PPPoE AC : AC: Service-Name TAGAC-Name TAG NAT PPP PAP

More information

TTC TTC STANDARD JT-G957 Optical Interface for Equipments and Systems Relating to the Synchronous Digital Hierarchy THE TELECOMMUNICATION

TTC TTC STANDARD JT-G957 Optical Interface for Equipments and Systems Relating to the Synchronous Digital Hierarchy THE TELECOMMUNICATION TTC TTC STANDARD JT-G957 Optical Interface for Equipments and Systems Relating to the Synchronous Digital Hierarchy 3 200 4 9 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 2. 2.2 2.3 () (a) (2) (a) (b) (c)

More information

Broadband Internet I / 1 1 I / 1 2

Broadband Internet I / 1 1 I / 1 2 Broadband Internet I / 1 1 I / 1 2 I / 1 3 PSTN: Network as service infrastructure Circuit switch I / 1 4 Internet: End-to-End model Core routers Core routers I / 1 5 Internet I / 1 6 TCP/IP Application

More information

untitled

untitled PON Passive Optical NetworkOLT ONU TDM/TDMA OLT ONU TDM ONU #1 ONU #2 ONU #3 ONU #n 1 2 3 n 1 2 3 n 1 2 3 n 1 2 3 n 1 2 3 n 1.3µm OLT OSU ONU OLT TDMA ONU #1 ONU #2 ONU #3 ONU #n n 3 2 1 n 3 2 1 1.3µm

More information

fusion.PDF

fusion.PDF IP-VPN VPN Internet Protocol Virtual Private Network 2001.12. 4 Fusion Communications Corp. 1 2001.12. 4 Fusion Communications Corp. 2 2001.12. 4 Fusion Communications Corp. 3 2001.12. 4 Fusion Communications

More information

本組/魚田勝臣、他

本組/魚田勝臣、他 Business Review of the Senshu University No. 94, 1-15, 2012 IT PDCA PDCA 1 1 FORTRAN, COBOL ICT EDPS Electronic Data Processing SystemMIS Management Information SystemDSS Decision Support SystemSIS Strategic

More information

T - Telecommunication and Internet Protocol Harmonization Over Networks (TIPHON); Service and Network Management Framework; Part 1: Overview and Intro

T - Telecommunication and Internet Protocol Harmonization Over Networks (TIPHON); Service and Network Management Framework; Part 1: Overview and Intro T - Telecommunication and Internet Protocol Harmonization Over Networks (TIPHON); Service and Network Management Framework; Part 1: Overview and Introduction (DTR/TIPHON-01004-1 V0.1.5) 1.0 2001 8 30 THE

More information

JJ-90

JJ-90 Table 1 Message types added to ITU-T Recommendation Q.763 Message type Abbreviation Reference Code Comments Charge information CHG 4-30/JT-Q763 11111110 The description of a Charge information message

More information

VoIP Broadcasting System 2/2 IP Convergence Communication Solution IP paradigm Integration & Management VoIP IP VoIP VoIP IT < 02-06-12>

VoIP Broadcasting System 2/2 IP Convergence Communication Solution IP paradigm Integration & Management VoIP IP VoIP VoIP IT < 02-06-12> 2003. 5. 22 AddPac Technology Proprietary VoIP Broadcasting System 2/2 IP Convergence Communication Solution IP paradigm Integration & Management VoIP IP VoIP VoIP IT < 02-06-12> 8Khz 16Khz CDMA ADSL VoIP

More information

TTC技術書

TTC技術書 JJ-20.24 Private Integrated Services Network(PISN)- Signalling protocols for IP-based connections as Inter-PINX Connections 2003 4 23 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE ...5...6...6...6...7...7...7...7...7...7...7...7...7...7

More information

untitled

untitled Network Product Guide Network Monitoring System Network Product Guide Time stamp Write to disk Filter Convert Summarise Network Product Guide Network Monitoring System TDS2 TDS24 Network Analysis Report

More information

nakayama15icm01_l7filter.pptx

nakayama15icm01_l7filter.pptx Layer-7 SDN SDN NFV 50 % 3 MVNO 1 2 ICM @ 2015/01/16 2 1 1 2 2 1 2 2 ICM @ 2015/01/16 3 2 Service Dependent Management (SDM) SDM Simple Management of Access-Restriction Translator Gateway (SMART-GW) ICM

More information

untitled

untitled 4 1 4.1................................................. 1 4.1.1........................................ 1-1 4 17 11 30 4.1 2001 49% 2,400 47% 6,000 2001 390 8% 2005 3000 1000 IT 1 ADSL(Asymmetric Digital

More information

2

2 www.infineon.com/ 2 3 4 5 Cordless Phone WDCT PA RF - base station Step 7 UART 8/16-bit µc bus EBU MIPS - 4kec 175 MHz Network Processor VINETIC-CL SDR controller ADM3120 10 / 100 Auto MDIX PHY Flash WAN

More information

ISP

ISP RIIM-sec@list.waseda.jp http://www.waseda.jp/prj-riim/ 1 TCP/IP ISP Internet Service Provider ISDN OCN NTT ISP Open Computer Network ISP OCN 2 03 7,7 47.8% 07 8,892,967 ISP 2 ISP @nifty BIGLOBE ISP 04

More information

199004_渓仁会_年次報告書

199004_渓仁会_年次報告書 () () () () () () () () () () () () () () () (4) (5) (6) 4 (7) 5 (8) 6 (9) 7 () 8 () 7 4 5 () 6 () 6 7 9 () 4 () 4 () 4 () 4 () 4 () 4 () 4 () 4 () 44 45 () 4 46 () 48 () 48 () 49 () 49 5 () 5 () 5 ()

More information

ppt

ppt / 5 1 (error control) (flow control) / 5 2 Layer 1 gateway: repeater ( ) Layer 2 gateway: bridge ( ) Layer 3 gateway: router (datalink frame) / 5 3 Data link control (error detection / correction) (flow

More information

AirMac ネットワーク構成の手引き

AirMac ネットワーク構成の手引き AirMac 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac 8 AirMac Express 8 AirMac 9 AirMac 10 AirTunes 10 AirMac Extreme AirMac Express 10 2 13 15 Mac OS X IP 16 Mac OS X AirMac 3 17 AirMac 17

More information

IP時代のトランスポート:FLASHWAVE

IP時代のトランスポート:FLASHWAVE IP FLASHWAV Next-generation Transport Solution: FLASHWAV IT FLASHWAV IP 2 10 Gbps / 2 FLASHWAV2750 IP IP Abstract Fujitsu s FLASHWAV family of phonic transport products covers a broad range of applications

More information

INTERNATIONAL TELECOMMUNICATION UNION

INTERNATIONAL TELECOMMUNICATION UNION JT-H450.10 JT-H323 Call offer supplementary service for JT-H323 1 2002 5 30 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE ...4...6...6...7...7 SS-CO...8 5.1...8 5.1.1 / / /...8 5.1.2...8 5.2...9 5.3...10

More information

AirMac ネットワーク for Windows

AirMac ネットワーク for Windows AirMac for Windows Windows XP Windows 2000 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac for Windows 7 AirMac Express 8 AirMac 9 AirTunes 9 AirMac Extreme 10 2 11 AirMac 11 AirMac 12 AirMac

More information

Cisco 1711/1712セキュリティ アクセス ルータの概要

Cisco 1711/1712セキュリティ アクセス ルータの概要 CHAPTER 1 Cisco 1711/1712 Cisco 1711/1712 Cisco 1711/1712 1-1 1 Cisco 1711/1712 Cisco 1711/1712 LAN Cisco 1711 1 WIC-1-AM WAN Interface Card WIC;WAN 1 Cisco 1712 1 ISDN-BRI S/T WIC-1B-S/T 1 Cisco 1711/1712

More information

<参考>

<参考> ISUP ISUP formats and codes 21.1 2006 9 5 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 2 ... 4... 11 1.0... 11 1.0.1... 11 1.0.2... 11 1.0.3... 11 1.0.4... 11 1.0.5... 13 1.1... 14 1.2... 14 1.3... 14 1.4...

More information

i TCP/IP NIC Intel 3com NIC TCP/IP *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP *1 3

i TCP/IP NIC Intel 3com NIC TCP/IP *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP *1 3 i TCP/IP NIC Intel 3com NIC TCP/IP 78 90 500 *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP 79 80 *1 3 ii IPv4 IPv4 *2 *3 IPv6 5 IPv6 UDP UDP IP UDP IP TCP/IP IPv6 IPv4 TCP/IP IPv6 TCP/IP TCP/IP TCP/IP TCP/IP IPv6

More information

untitled

untitled 2: ()? 2 UTP ()!! SW-HUB 3 Point-to-Point Broadcast Multiple Access Non-Broadcast Multiple Access Point-to-Point 2 MAC Examples Node A Node B 1 Broadcast Multiple Access () MAC Node A Node B Node C Ethernet

More information

Microsoft Word - ™²“¸„�fi¢Łñ“’‘‚.doc

Microsoft Word - ™²“¸„�fi¢Łñ“’‘‚.doc 12 3 ii 12 3 iii ............... 1... 1... 1... 2... 4 1............ 5... 5... 6 2........ 7... 7... 7... 8 Big Window... 10... 10... 10... 10 Small Window... 11... 11... 11... 12... 13... 13... 14...

More information

2

2 2 3 ( 4 1) ( 49 8) ( 49 82) ( 49 822) ( 49 823) ( 49 14) ( 49 14) ( 49 14) 49 14 ( 49 17) ( 49 202) IEEE802.11 ( 49 201) IEEE802.11 Bluetooth 5GHz ( 49 203) IEEE802.11 ( 49 204) 5GHz ( 49 21) IEEE802.11

More information

スライド 1

スライド 1 Gateway Gateway 1 Power Line 2 3 / 10M 1M 100k 10k 03 04 05 06 BlueTooth 5GHz MCPLC HF ZigBee PLC LAN M16C/6S(M306S) IT800PLC Itran IT800MicrosoftSCP M16C-PLC Gateway/Bridge Products With SH7751R,Windows

More information

Macintosh HD:Users:ks91:Documents:lect:nm2002s:nm2002s03.dvi

Macintosh HD:Users:ks91:Documents:lect:nm2002s:nm2002s03.dvi 3 ks91@sfc.wide.ad.jp April 22, 2002 1 2 1. over IP ( : Voice over IP; IP Internet Protocol ) over IP??? : 2002/4/20 23:59 JST : http://www.soi.wide.ad.jp/report/ 3 32 11 (4/22 ) 4 () 3 2 1? 4 ...... A.C.

More information

untitled

untitled 1 SS 2 2 (DS) 3 2.1 DS................................ 3 2.2 DS................................ 4 2.3.................................. 4 2.4 (channel papacity)............................ 6 2.5........................................

More information

橡_東_130627ADSL技参資Ver2.PDF

橡_東_130627ADSL技参資Ver2.PDF IP ...2...3...3 ADSL...5...5...5...7...7...8...9...10...10...11... 11 1... 11... 11... 11 2...12 PPPoE...12 PPPoE...12 PPPoE...12...14 PPP...25 PPPoE...26 PPP...27 PPP...27 PPP...27 LCP...28 IPCP...29

More information

Microsoft PowerPoint _mlps_japan_ipv6.pptx

Microsoft PowerPoint _mlps_japan_ipv6.pptx v6 での インターネットアクセス方式 NTT 情報流通プラットフォーム研究所 藤崎智宏 fujisaki@nttv6.com v{4,6} におけるインターネットアクセス方式 インターネット ISP IDC ISP 本プレゼンテーションの範囲 Residential User 2 本日お話する内容 v4 でのインターネットアクセス v6 でのアクセス方式の概要 日本での v6 でのアクセス方式 3

More information

untitled

untitled ICMP 0466-XX-1395 t04000aa@sfc.keio.ac.jp 133.113.215.10 (ipv4) 2001:200:0:8803::53 (ipv6) (FQDN: Fully Qualified Domain Name) ( www.keio.ac.jp 131.113.215.10 /MAC ID 00:11:24:79:8e:82 Port Port = = Port

More information

rzat10pdf.ps

rzat10pdf.ps IBM i 7.2 IBM Navigator for i IBM IBM i 7.2 IBM Navigator for i IBM 9 IBM i 7.2 ( 5770-SS1) RISC CISC IBM IBM i Version 7.2 Connecting to your system Connecting to IBM Navigator for i Copyright IBM Corporation

More information

本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製 転載 改変 転用及びネットワーク上での送信 配布を行うことを禁止します JF-IEEE802.3

本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製 転載 改変 転用及びネットワーク上での送信 配布を行うことを禁止します JF-IEEE802.3 JF-IEEE802.3 Ethernet に関するインタフェース Interface for Ethernet 第 2 版 2014 年 5 月 22 日制定 一般社団法人情報通信技術委員会 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE 本書は 一般社団法人情報通信技術委員会が著作権を保有しています 内容の一部又は全部を一般社団法人情報通信技術委員会の許諾を得ることなく複製

More information

年次報告書-2003年(平成15年)度版-

年次報告書-2003年(平成15年)度版- 9876 ,g,g,g,9g 8 6 6 6 6 8 7 8 6 7 8 7 9 7 6 6 6 7 7 8 6 8 7 6 6 8 7 8 7 7 9 7 6 98 76,8 () ( ) 8,68.7 7,76, 9,87.9 8,67, () g g g g g g g g g g g g g g g g g g g g g g g g g g g g () () 9 8 88 6 8 88

More information

untitled

untitled ()IP OSI ( ) (TCP/IP)TCP UDP ( ) IP + IP TCP / Web TCP/UDP IP / LAN IM xdsl/ () (FAX) 6bit(6556) FAX FAX ( ) UDP/TCP UDP(User Datagram Protocol) CL (Connectionless) TCP(Transmission Control Protocol) CO

More information

indd

indd 8 デジタルケーブルテレビ関連技術およびサービス動向 宮地悟史 KDDI( 株 ) ケーブルテレビ概要 1953 2 1955 Community Antenna Television Common Antenna Television CATV CATV CATV BS CATV サービス動向 全体概要 2010 9 図 -1 1 4,451 5,336 83% 4,890 91% 2,371 44%

More information

O1-1 O1-2 O1-3 O1-4 O1-5 O1-6

O1-1 O1-2 O1-3 O1-4 O1-5 O1-6 O1-1 O1-2 O1-3 O1-4 O1-5 O1-6 O1-7 O1-8 O1-9 O1-10 O1-11 O1-12 O1-13 O1-14 O1-15 O1-16 O1-17 O1-18 O1-19 O1-20 O1-21 O1-22 O1-23 O1-24 O1-25 O1-26 O1-27 O1-28 O1-29 O1-30 O1-31 O1-32 O1-33 O1-34 O1-35

More information

ルータ(IPv6)掲示用池田.PDF

ルータ(IPv6)掲示用池田.PDF JEITA IPv6 - IPv6-1 1. 2. IPv6 3. 4. IPv6 5. IPv6 6. 7. 2 1 1. 2. IPv6 3. 4. IPv6 5. IPv6 6. 7. 3 (1) 4 2 (2) IP(Internet Protocol - - A A 5 (3) IPv6 AP AP TCP IP TCP IP 6 3 TCP/IP(v6) TELNET FTP TFTP

More information

ITAOI2003第三屆離島資訊與應用研討會論文範例

ITAOI2003第三屆離島資訊與應用研討會論文範例 2003 6 kung@mail.npust.edu.tw, b8956018@mail.npust.edu.tw, m9056011@mail.npust.edu.tw (Internet) and build up cache proxy servers. In this paper, we (Multi-media) design and development four proxy servers

More information

JGN 2 KDDI NiCT IT 17518 NiCT IT PC ( ) [2], : " ", (%) 100 0 0 T 1 T 2 t1.2 tx t3 t4 t6 (t) 2005 Mobile PC PDA Mobile PC PDA Mobile PC Mobile phone WAN Internet JGN II GIS Japan Gigabit

More information

IW2001-B2 1 Internet Week 2001 ( ) Copyright 2001 All Rights Reserved, by Seiji Kumagai IW2001-B2 2 CodeRed Copyright 2001 All Rights

IW2001-B2 1 Internet Week 2001 ( ) Copyright 2001 All Rights Reserved, by Seiji Kumagai IW2001-B2 2 CodeRed Copyright 2001 All Rights 1 Internet Week 2001 ( ) kuma@isid.co.jp 2 CodeRed 1 3 (EXCEED ) se cu ri ty? 4? 2 5 Web IP Web MP3 6 3 7 1.5Mbps8Mbps 500 MP3 CM VoD 8 4 ADSL (Asymmetric Digital Subscriber Line) () CATV FWA (Fixed Wireless

More information

total-all-nt.dvi

total-all-nt.dvi XI W I D E P R O J E C T 1 WIDE Reliable Multicast 1.1 TV 1 1 TCP WIDE JGN/JB SOI (DV) Reliable Multicast (RM) US Reliable Multicast IETF RMT-WG PGM Digital Fountain FEC Tornado Code Ruby Code 1.2 WIDE

More information

Keysight Technologies LTE規格に準拠したトランスミッタのACLR測定

Keysight Technologies LTE規格に準拠したトランスミッタのACLR測定 Keysight Technologies LTE ACLR Application Note IP LTE 3GPP LTE LTE 1 LTE ACLR LTE Keysight X PXA/MXA/EXA LTE Keysight MXG LTE LTERF LTE 6 1.4 20 MHz OFDMA SC-FDMA 2 FDD TDD MIMO LTE CDMA RF LTE 1 LTE

More information

2 / 43

2 / 43 Office 1 / 43 2 / 43 Access2003 3 / 43 Access2003 1 9 Access2003 4 / 43 5 / 43 6 / 43 7 / 43 8 / 43 9 / 43 10 / 43 11 / 43 12 / 43 13 / 43 14 / 43 15 / 43 16 / 43 17 / 43 18 / 43 19 / 43 20 / 43 21 / 43

More information

CISPR 35の概要

CISPR 35の概要 CISPR 35 e 2018 3 28 1 1 2 2 2.1 IEC 61000-4-2 ( )......... 2 2.2 IEC 61000-4-3, -4-20, -4-21, -4-6 ( RF )....................... 2 2.3 IEC 61000-4-5 ()............ 2 2.4............. 4 3 4 3.1 EUT............

More information

IT IBM Corporation

IT IBM Corporation 2009/9/25 ATC. 1 2009 IBM Corporation 1. 1. 2. 3. IT 2 2009 IBM Corporation 2006 8 9 (?) Google CEO, Eric Schmidt @ Search Engine Strategies Conference (*) emergent () 10 Network ComputerAjax LAMP (Linux

More information

PC PDA SMTP/POP3 1 POP3 SMTP MUA MUA MUA i

PC PDA SMTP/POP3 1 POP3 SMTP MUA MUA MUA i 21 The private mailers synchronization operation for plural terminals 1125083 2010 3 1 PC PDA SMTP/POP3 1 POP3 SMTP MUA MUA MUA i Abstract The private mailers synchronization operation for plural terminals

More information

1 911 9001030 9:00 A B C D E F G H I J K L M 1A0900 1B0900 1C0900 1D0900 1E0900 1F0900 1G0900 1H0900 1I0900 1J0900 1K0900 1L0900 1M0900 9:15 1A0915 1B0915 1C0915 1D0915 1E0915 1F0915 1G0915 1H0915 1I0915

More information

Agenda IPv4 over IPv6 MAP MAP IPv4 over IPv6 MAP packet MAP Protocol MAP domain MAP domain ASAMAP ASAMAP 2

Agenda IPv4 over IPv6 MAP MAP IPv4 over IPv6 MAP packet MAP Protocol MAP domain MAP domain ASAMAP ASAMAP 2 MAP Tutorial @ 1 Agenda IPv4 over IPv6 MAP MAP IPv4 over IPv6 MAP packet MAP Protocol MAP domain MAP domain ASAMAP ASAMAP 2 IPv4 over IPv6 IPv6 network IPv4 service Internet Service ProviderISP IPv4 service

More information

untitled

untitled DICOM Digital Imaging and Communications in Medicine DICOM DICOM Digital Imaging and Communications in Medicine ACRNEMA CD-R DICOM 1 HIS Server PC HL7 RIS WEB Image/Report Viewer WEB RIS Server DICOM DICOM

More information

TM-m30 詳細取扱説明書

TM-m30 詳細取扱説明書 M00094100 Rev. A Seiko Epson Corporation 2015. All rights reserved. 2 3 4 5 6 Bluetooth 7 Bluetooth 8 1 9 Bluetooth 10 1 11 1 2 6 5 4 3 7 12 1 13 14 ONF 1 N O O N O N N N O F N N F N N N N N N F F O O

More information

RT300/140/105シリーズ 取扱説明書

RT300/140/105シリーズ 取扱説明書 REMOTE & BROADBAND ROUTER RT300i/RT140p/RT140f/RT140i RT140e/RT105p/RT105i/RT105e 2 3 4 5 6 7 8 9 10 Bold face Enter Ctrl Tab BS Del Console RT105i RT300i RT140p RT140f RT140i RT140e RT105p RT105i RT105e

More information

2

2 2 Unified Interpretation on Article 9 of Ordinance Concerning Terminal Facilities, Etc. based on Telecommunications Business Act April, 2010 Japan Approvals Institute for Telecommunications Equipment (JATE)

More information

TM-T88VI 詳細取扱説明書

TM-T88VI 詳細取扱説明書 M00109801 Rev. B 2 3 4 5 6 7 8 9 10 Bluetooth 11 12 Bluetooth 13 14 1 15 16 Bluetooth Bluetooth 1 17 1 2 3 4 10 9 8 7 12 5 6 11 18 1 19 1 3 4 2 5 6 7 20 1 21 22 1 23 24 1 25 SimpleAP Start SSID : EPSON_Printer

More information

PDFŠp…f†[…^

PDFŠp…f†[…^ DIGITAL IMAGING SYSTEM DICOM Digital Imaging and Communications in Medicine (DICOM) Part 1: Introduction and Overview NEMA Part 4 Service Class Specifications Part 3 Information Object

More information

PS

PS PS 3.7-2001 PS 3.7-2001 Digital Imaging and Communications in Medicine (DICOM) Part 7: Message Exchange Published by National Electrical Manufacturers Association 1300 N. 17th Street Rosslyn, Virginia

More information

TM-m30 詳細取扱説明書

TM-m30 詳細取扱説明書 M00094106 Rev. G Seiko Epson Corporation 2015-2018. All rights reserved. 2 3 4 5 6 7 8 Bluetooth 9 ... 71 10 1 11 Bluetooth 12 1 13 1 2 6 5 4 3 7 14 1 1 2 3 4 5 15 16 ONF 1 N O O N O N N N O F N N F N

More information

Microsoft PowerPoint _2011MPLSJapan_SBTM八木_ver2.pptx

Microsoft PowerPoint _2011MPLSJapan_SBTM八木_ver2.pptx MPLS Japan 2011 パケット トランスポートの融合 セッション (2) キャリアネットワークにおける MPLS-TP 導入の課題と展望 ソフトバンクテレコム株式会社ネットワーク本部八木幹雄 2011 年 10 月 24 日 MPLS Japan 2011 Agenda 当社ネットワークにおけるMPLS-TP の導入検討きっかけ MPLS-TPの導入に向けた道のり 導入 運用における課題

More information

TM-m30 詳細取扱説明書

TM-m30 詳細取扱説明書 M00094101 Rev. B Seiko Epson Corporation 2015-2016. All rights reserved. 2 3 4 5 6 7 8 Bluetooth 9 Bluetooth 10 1 11 Bluetooth 12 1 13 1 2 6 5 4 3 7 14 1 1 2 3 4 5 15 16 ONF 1 N O O N O N N N O F N N F

More information

CDMA (high-compaciton multicarrier codedivision multiple access: HC/MC-CDMA),., HC/MC-CDMA,., 32.,, 64. HC/MC-CDMA, HC-MCM, i

CDMA (high-compaciton multicarrier codedivision multiple access: HC/MC-CDMA),., HC/MC-CDMA,., 32.,, 64. HC/MC-CDMA, HC-MCM, i 24 Investigation on HC/MC-CDMA Signals with Non-Uniform Frequency Intervals 1130401 2013 3 1 CDMA (high-compaciton multicarrier codedivision multiple access: HC/MC-CDMA),., HC/MC-CDMA,., 32.,, 64. HC/MC-CDMA,

More information

FlexRay

FlexRay FlexRay 2011 @IT MONOist FlexRay @IT MONOist http://monoist.atmarkit.co.jp Vector Japan Co., Ltd. 目次 1 FlexRay 03 1 03 03 04 X-by-Wire 04 2 05 3 FlexRay 06 4 FlexRay 06 Fixed TDMA Flexible TDMA 06 08 09

More information

untitled

untitled 1 2 4/12 4/19 (1) 3 4 5 4/26 5/10 5/17 (2) 4 6 7 8 9 10 11 12 5/24 5/31 6/7 6/14 6/21 6/28 7/5 (1) (2) 13 7/12 Unicast Broadcast Multicast 1 1 Video/Audio broadcast (TV/adio etc.) Video Conferencing DVTS

More information

TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2

TCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2 Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service

More information

IEEE e

IEEE e 2007 IEEE 802.11e LAN VoIP 2008 2 4 3606U075-2 1 5 1.1...................................... 5 1.2...................................... 5 1.3..................................... 6 2 IEEE 802.11e LAN

More information

- 2 -

- 2 - - 2 - - 3 - (1) (2) (3) (1) - 4 - ~ - 5 - (2) - 6 - (1) (1) - 7 - - 8 - (i) (ii) (iii) (ii) (iii) (ii) 10 - 9 - (3) - 10 - (3) - 11 - - 12 - (1) - 13 - - 14 - (2) - 15 - - 16 - (3) - 17 - - 18 - (4) -

More information

2 1980 8 4 4 4 4 4 3 4 2 4 4 2 4 6 0 0 6 4 2 4 1 2 2 1 4 4 4 2 3 3 3 4 3 4 4 4 4 2 5 5 2 4 4 4 0 3 3 0 9 10 10 9 1 1

2 1980 8 4 4 4 4 4 3 4 2 4 4 2 4 6 0 0 6 4 2 4 1 2 2 1 4 4 4 2 3 3 3 4 3 4 4 4 4 2 5 5 2 4 4 4 0 3 3 0 9 10 10 9 1 1 1 1979 6 24 3 4 4 4 4 3 4 4 2 3 4 4 6 0 0 6 2 4 4 4 3 0 0 3 3 3 4 3 2 4 3? 4 3 4 3 4 4 4 4 3 3 4 4 4 4 2 1 1 2 15 4 4 15 0 1 2 1980 8 4 4 4 4 4 3 4 2 4 4 2 4 6 0 0 6 4 2 4 1 2 2 1 4 4 4 2 3 3 3 4 3 4 4

More information

20 15 14.6 15.3 14.9 15.7 16.0 15.7 13.4 14.5 13.7 14.2 10 10 13 16 19 22 1 70,000 60,000 50,000 40,000 30,000 20,000 10,000 0 2,500 59,862 56,384 2,000 42,662 44,211 40,639 37,323 1,500 33,408 34,472

More information

I? 3 1 3 1.1?................................. 3 1.2?............................... 3 1.3!................................... 3 2 4 2.1........................................ 4 2.2.......................................

More information

1 (1) (2)

1 (1) (2) 1 2 (1) (2) (3) 3-78 - 1 (1) (2) - 79 - i) ii) iii) (3) (4) (5) (6) - 80 - (7) (8) (9) (10) 2 (1) (2) (3) (4) i) - 81 - ii) (a) (b) 3 (1) (2) - 82 - - 83 - - 84 - - 85 - - 86 - (1) (2) (3) (4) (5) (6)

More information

資料 2- 伝 ITU-T SG15 WP1 会合課題別対処方針 資料 2- 伝 -1-SG15-WP1-Q1- 課対資料 2- 伝 -1-SG15-WP1-Q2- 課対資料 2- 伝 -1-SG15-WP1-Q4- 課対 Q.1 対処方針 Q.2 対処方針 Q.4 対処方針

資料 2- 伝 ITU-T SG15 WP1 会合課題別対処方針 資料 2- 伝 -1-SG15-WP1-Q1- 課対資料 2- 伝 -1-SG15-WP1-Q2- 課対資料 2- 伝 -1-SG15-WP1-Q4- 課対 Q.1 対処方針 Q.2 対処方針 Q.4 対処方針 資料 2- 伝 -1-10 ITU-T SG15 WP1 会合課題別対処方針 資料 2- 伝 -1-SG15-WP1-Q1- 課対資料 2- 伝 -1-SG15-WP1-Q2- 課対資料 2- 伝 -1-SG15-WP1-Q4- 課対 Q.1 対処方針 Q.2 対処方針 Q.4 対処方針 資料 2- 伝 -1-SG15-WP1-Q1- 課対 ( 情報通信技術分科会 ITU-T 部会委員会様式 3)

More information

設定例集

設定例集 REMOTE ROUTER 1999. 2. 2 YAMAHA NetWare Novell,Inc. INS 64 YAMAHA! M E M O 1 1 1.1 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 1 1.2 : : : : : : : : : : : : : : : : : : : : :

More information

1885 18 1949 24 1952 27 1985 60 1999 11 NTT 63 1869 2 . -. -. -.. -. -. -.. -. -. 3 78 51 48-68 71 . -. -. -.. -. -. + + 100Kbps ADSL 100Kbps ITU Internet Reports 2003: Birth of Broadband(20039) 400 400

More information