1. Next Generation Networks Emulating Existing Services Over All IP networks Mati Epstein Sales Director Mati_e@rad.com www.rad.com

2. master.ppt Slide 2 Agenda Ethernet Access Pseudo wire Principle & Solution Overview Emulated Services – Implementation options Summary

3. master.ppt Slide 3 Ethernet Access

4. master.ppt Slide 4 Ethernet Access: Initial Positioning Ethernet access networks were considered for new backbones only Huge saving in the access is expected: “it’s all about money, not technology” Traditional (Legacy) Networks Traditional Access Existing Infrastructure Ethernet Access New Packet-Switched Networks (PSN) Future (new) Infrastructure New Backbone - GbE (Metro) - MPLS - IP Legacy Backbone - SDH - ATM

5. master.ppt Slide 5 Ethernet Access to Legacy and Packet-Switched Networks Co-existence of legacy and new packet-switched backbone networks Same Ethernet access to SDH and ATM as well as to PSN “Bottom-Up” approach to Ethernet access deployment New Backbone - GbE - MPLS - IP Legacy Backbone - SDH - ATM Ethernet Access Traditional Access

6. master.ppt Slide 6 Evolution of Ethernet Service Delivery NTU Legacy Access TDM, FR, ATM Legacy Core ATM, SDH PSN Core Ethernet, IP, MPLS PSN Core Ethernet, IP, MPLS NTU Legacy/Ethernet Access TDM, FR, ATM Ethernet NTU PSN Access Ethernet, MPLS Ethernet service (user) interface at Network Termination Unit (NTU) PSN (packet Switched Network) core, and mix of Ethernet and Legacy in the access “All PSN” network PSN, Access and Core

7. master.ppt Slide 7 Intelligent Demarcation Concept Clear demarcation Truck roll is not affordable in low-cost Ethernet services Extensive monitoring and diagnostics capabilities including: Loopback Ping and Trace Route Cable tester Traffic management (QoS) starting at customer premises Per service traffic classification and prioritization Priority marking for ‘port based service’ Traffic policing Security: Access control list, RADIUS, SSL, SSH Remote manageability  Intelligent Demarcation is essential for minimizing operational costs Dying gasp Fault propagation Extensive statistics PE Provider’s Node PE Provider’s Node Customer Premises CPE NTU End-to-end Service control, SLA monitoring and diagnostics Customer Premises CPE NTU Packet Switched Network Eth/IP/MPLS NNI UNI

8. master.ppt Slide 8 Ethernet Network Termination Unit (E-NTU) - ETX-102/202 Carriers owned, customer located device Allows for Ethernet in the local loop Typically applications: CLE for metro networks CLE for NG-SDH/Sonet networks using Ethernet access to connect to the NG-ADM Packet Switched, SDH/SONET or ATM Network 100Base Fx Edge Device Edge Device Management 100Base Fx GbE Customer Premises CPE 10/100BaseT Customer Premises 10/100BaseT CPE Customer Premises CPE 10/100BaseT 1000Sx Customer Premises CPE 10/100BaseT 1000Sx ETX-102 ETX-202 GbE

9. master.ppt Slide 9 Egate Gateways and RICs Innovative Channelized Ethernet over TDM Egate is a Gateway connecting TDM and Packet networks Egate-100 Connects up to 126 remote LANs over FE1/FT1, E1/T1 and n*E1/T1 Egate-20 connects up to 248 LANs over FE1/FT1 and E1/T1 Reduces equipment costs by 70% and considerably reduces maintenance costs versus Router and Cross Connect alternatives Complete solution with RADs RIC, FCD-x and ASMi-52 lines POP/CO 8 x E1 FE Egate-20 SDH/ SONET DACS POP n x E1 Ethernet RICi-E1/T1 E1/FE1 Egate-100 STM-1/OC-3 GbE PSN n x E1 Ethernet RICi-4E1 RICi-8E1 Wimax

10. master.ppt Slide 10 Pseudo wire Principle & Solution Overview

11. master.ppt Slide 11 Emulated Services: The Challenges Maintain legacy services Optimization of BW usage over DSL access link Synchronization and clock distribution over a Packet Network Support legacy services while keeping IP DSLAM cost low Reduce DSLAM complexity to the lowest possible level Same DSL card for different emulated services. Multiservice offering at customer premises (multiservice over single access link as an example : FR + LAN or FR + Leased Line)

12. master.ppt Slide 12 Pseudo wire – The Concept  The synchronous bit stream is chopped into packets Legacy Service frame Legacy service frame Ethernet/ MPLS/ IP Packets Ethernet/IP Ethernet/ MPLS/ IP Packets  MPLS/IP headers are added  Packets are forwarded to destination over the IP network  At destination, the original bit stream is reconstructed by removing MPLS/ IP headers, concatenating the packets, and regenerating the clock

13. master.ppt Slide 13 Pseudo wire Technology - Standards RAD complies with the following TDMoIP Standards: IETF - ietf-pwe3-tdmoip ITU - Y.1413 – TDMoIP section MFA – IA 4.0 MEF – CESoE (Q2/06) Other pseudo wire standards IETF - ietf-pwe3-CESoPSN IETF - ietf-pwe3-SAToP ITU - Y.1413 – CESoPSN and SAToP sections RAD is committed to Pseudo wire technology and will support most pseudo wire standards by 2006.

14. master.ppt Slide 14 Migration to IP/MPLS Networks: Maintaining Legacy Services Maintaining existing services over new IP infrastructure IP DSLAM as multiservice access node especially for legacy services There are several options for Service Emulation : Edge-Edge CPE-CPE CPE Access Legacy Network Access CPE POTS/ISDN Leased Lines X.25/FR/ATM POTS/ISDN Leased Lines X.25/FR/ATM IP/MPLS Network Edge-to-Edge Service Emulation CLE Access CLE CLE-to-CLE Service Emulation POTS/ISDN Leased Lines X.25/FR/ATM POTS/ISDN Leased Lines X.25/FR/ATM CPE

15. master.ppt Slide 15 Emulated Services: Implementation Options

16. master.ppt Slide 16 E1 Trunking over MPLS for Cellular and business connectivity Provides Time Warner Cable customers with a migration path to Metro Ethernet services by eliminating the need for separate, costly T1/T3 circuits Cost-effective, low maintenance, compact and scalable solution Large positive impact on Time Warner Cable revenue forecast for the coming years

17. master.ppt Slide 17 DSL with TDMoIP for Cellular backhauling and PABX connectivity Key Customers Carriers with PSN core DSLAM install base with Ethernet uplink Key Application Leased lines over IP networks Cellular backhaul Key Features 2 or 4 wires SHDSL Supports CESoPSN or TDMoIP (Over IP, Ethernet or MPLS) Serial data or E1 CES NTR/Adaptive clock mode E1 ATM is planned for October 2005 Structured or unstructure modes Management via SNMP,Telnet or terminal Site A LA-110 PBX BTS/NodeB E1 PSN Core Site B LA-110 PBX BTS/NodeB E1 2G/3G BSC/RN C PSTN GMUX GbE N x E1 TDM SHDSL/VDSL/F.O. MSAG SHDSL/VDSL/F.O. DSL

18. master.ppt Slide 18 Seamless Ethernet Services over PSN and TDM Networks “Most Impressive path with RAD fiber CPE.. and RAD Ethernet over 8E1” MEF multi-vendor Carrier Ethernet interoperability test, Berlin, 2005 … And what about voice legacy?

19. master.ppt Slide 19 n  E1 IMA STM-1 ATM 2G/3G Co-location over PSN Ethernet ACE-3x00 3G RNC Ethernet ACE-3x00 n  E1 IMA/UNI STM1 3G Node B Packet Switched Network Aggregation and tunneling (pseudo-wire) of both TDM traffic (2G with TDMoIP/CESoPSN) and ATM traffic (3G with ATMoPSN) over the same packet transport network Transparent backhaul of Abis and lub over the PSN Encapsulation of ATM cells over PSN according to: draft-ietf-pwe3-atm-encap 2G BTS E1 TDM 2G BSC n  E1 TDM Ethernet ACE 3x00 Node B n  E1 IMA/UNI STM1 PSN Cellular backhaul over PSN Aggregation solution

20. master.ppt Slide 20 Packet Switched Network Eth/IP/MPLS Ethernet over any network – Combined PSN and NG SDH Networks Edge Device UTP GE/FE FO GE/FE Customer Premises Edge Device GE/FE FO GE/FE ETX CPE Ethernet E1 PBX LAN IPmux-11/14 Customer Premises GE Gmux-2000 FE STM-1 E1/E3 Customer Premises SDH/Sonet Network ADM Egate GE/FE STM-1/E1 E1/T1 RIC 10/100BaseT n x E1/T1 Customer Premises 10/100BaseT NG ADM CPE ETX GE NG ADM FE CPE ETX FE GE/FE IP-DSLAM Customer Premises ADM TDMoIP Voice to the PSTN Network CPE ETX Customer Premises

21. master.ppt Slide 21 Summary While access and core technologies are migrating to packet based networks, most of carriers revenues are generated by legacy TDM services Pseudo Wires with TDMoIP products enable this migration to be smooth and ensures continued TDM services revenues. RAD has a complete pseudo wire solution to enable legacy services for Cellular Backhaul, PSTN access over packet and Enterprise Toll Bypass.

22. master.ppt Slide 22 www.rad.com thank you http://www.rad.com