【正文】 Exchange ATM Exchange EWSD BroadbandNode EWSD BroadbandNode Changing Broadband Network Scenario 3/1/2023 35 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Local Network with EWSD BroadbandNode EWSD OAM incl. ATM and DSL ATM PSTN SS7 Remote Site Remote Site EWSD BroadbandNode 3/1/2023 36 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 EWSD BroadbandNode Embedding in Existing Networks Legacy Node or Concentrator Local Exch. EWSD Innovation Node EWSD Innovation Node Trunk Exch. SDH PH DLU SDH/PDH RSU Remote Switching Unit DLU Digital Line Unit PH Packet Hub FR Frame Relay Broadband PSTN/ISDN RSU other ATM/FR work MSP stand alone ATM switch . 36170/36190 Broadband PSTN/ISDN DLU PH PH 3/1/2023 37 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 ECube NGS Adaptation to Hybrid Solution Analog/ NISDN ATM UNI Processor IP/ATM IP/ATM MPLS Label mapping STM Module IWU FETEX150 ECube LAN 3/1/2023 38 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 ECube ATM Switch with MPLS MPLS Module LDP : Label Distribution Protocol OSPF : Open Shortest Path First BGP4 : Border Gateway Protocol BSGC : Broadband Signaling Control PVC : Permanent Virtual Connection BCPR : Broadband Call Processor API : Application Program Interface FETEX150 ? ATM UNI Line Line Line API BCPR BSGC API Routing Protocols ? IP data connection ? LDP,BGP4,OSPF signaling connection ? Routing signaling (OSPF,BGP4) termination ( Management IP routing table) ? LDP termination (Label assignment: Management of IP address and Label (VPI,VCI) information) ? Order of connection set up via API ? ATM termination ? AAL termination ? Relay of API information ? API information ? Communication with MPLS module through API (Software) ? Connection setup ? Management of connection information ? Connection setup OSPF/BGP4/LDP VCI map Setup Setup OC3 Switch OSPF, BGP4, LDP 3/1/2023 39 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 ECube NGS Adaptation to ATMcentric Solution FETEX150 ECube Analog/ NISDN ATM UNI STM Module ATM Module Processor IP/ATM IP/ATM IWU IPM LAN 3/1/2023 40 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 ECube Local Switch L2TP (Access Concentrator) — Allows subscribers to select ISPs — Aggregates IP packet for the same destination STM ATM Residential Power User SOHO ADSL HDSL/SDSL DSLAM ISP ISP Inter Backbone POTS IP/ATM IP/ATM POTS POTS IP/ATM ECube NGS Local Switch L2TP DSLAM 3/1/2023 41 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Tele Network Migration – 1 Circuit Switches Legacy Voice STM 3/1/2023 42 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Tele Network Migration – 2 ATM Plane Legacy Voice STM Mobile MSC BSC 3/1/2023 43 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Tele Network Migration – 3 IP/ATM w/MPLS Legacy Voice Mobile MSC BSC ISP ATM Voice Tandem IP Router Net 3/1/2023 44 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Tele Network Migration – 4 Voice Tandem IP Core Layer 1 MPLS ISP BSC MSC “ Best Effort” “ Quality” IP IP Edge Layer 3/1/2023 45 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Tele Network Migration – 5 Voice Tandem IP Core Layer 1 MPLS ISP BSC MSC IP Edge Layer API Integrated Access SW Network Server/Agent Clusters 3/1/2023 46 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Alcatel 1000 S12 Alcatel’ s transition strategy S12 Narrowband ? S12 Narrowband – Handles NB services (POTS and ISDN) RSU ARCU DSN NB control voice (E1: 2 Mb/s) voice (POTS/ISDN) 1 Alcatel 1000 S12 Alcatel’ s transition strategy S12 with MPSR and SDH ? S12 with MPSR and SDH links – NB services over BB transport – Availability: 1998 RSU ARCU NB control voice (E1: 2 Mb/s) VoSDH DSN voice (STM1 VC12: 155 Mb/s) voice (POTS/ISDN) MPSR 2 Alcatels transition strategy Only narrowband services, few ATM links ? S12 with ATM links and NB/BB transport interworking – Offer integrated VoATM and VoIP depending on the position in the work Alcatel 1000 S12 RSU ARCU VoIP and IP (AAL5: 155 Mb/s) VoIP RAN NB control voice (E1: 2 Mb/s) voice (POTS/ISDN) VoATM (AAL1: 155 Mb/s) Inter VoATM DSN mobile voice (AAL2: 155 Mb/s) 3 Alcatel’ s transition strategy Broadband services and lot of ATM links ? S12 with SDH links, ATM links and NB/BB interworking – Offer BB services, plus integrated VoATM and VoIP, depending on the position in the work – Availability: 2023 Alcatel 1000 S12 RSU ARCU IP (ATM: 155 Mb/s) DSN VoIP RAN VoSDH NB control voice (E1: 2 Mb/s) voice (STM1: 155 Mb/s) voice (POTS/ISDN) voice, data (ATM: 155 Mb/s) MSAN ADSL Inter BB control