Tel-Aviv, May 2007 RAD Pseudowires Solutions – Market and Products Overview Presented by: Merav Shenkar

PW Solutions Overview TS2007 Slide 2 Agenda Introduction Typical applications of RAD PW products RAD PW products Summary PW = Pseudowire

PW Solutions Overview TS2007 Slide 3 Background RAD’s TDM Pseudowire Products Offering Carrier class TDM voice or data over packet networks Uniform TDM access across all last mile infrastructures Preserves investment in legacy equipment in migration to PSN Reduce the costs by avoiding the need to pay for leased lines Lowers OpEx of TDM service by utilizing packet infrastructure. Carrier grade voice quality (no compression, no Silence Suppression) Pseudowire Packet Network PW GW TDM Service PW GW TDM Service

PW Solutions Overview TS2007 Slide 4 TDMoIP Solution – Campus Environment Application: Carrying PBX traffic over campus ETH network Benefits: Using PSN to provide voice services Saves leased line costs Preserving legacy TDM equipment, features and functionalities Building 1 LAN Building 2 Leased Line PSN LAN PBX

PW Solutions Overview TS2007 Slide 5 Cellular Backhauling Using PW Market trends: E1/T1 bandwidth is insufficient for new Broadband Services (e.g. HSDPA) Mobile operators deployed 3G, which requires additional backhaul bandwidth Circuit-based 2G co-located with ATM-based 3G Network evolution from TDM/ATM to IP/MPLS Future IP based Node B’s (3GPP R5/6) The RAN (Radio Access Network) typically consists of multiple E1/T1 Leased Lines Radio Stations BSC/RNC RAN

PW Solutions Overview TS2007 Slide 6 Different Services over PSN Solution Multiplex mixed-generation links to a common transport Convert between circuit, cell and packet Transport of a legacy service over IP/MPLS tunnels Multiplexing/aggregation of multiple services over PSN PSN GW DSL Services PSN Eth/IP/MPLS ATM PBX E1 TDM DSL TDM 2G LA ACE IPmux 3G Cellular Services VoIP

PW Solutions Overview TS2007 Slide 7 What is Pseudowire? Pseudo = Simulated, Seemingly Extends services over PSN (ETH/IP/MPLS) Supports voice, data and video Provides a transparent tunnel through the PSN Defined by IETF PWE3 working groups TDM PW, ATM PW, FR PW and ETH PW Provides clock distribution and synchronization over PSN

PW Solutions Overview TS2007 Slide 8 What is Pseudowire? ATM VCC HDLC TDM Bundle PW-GW PSN Network ATM VCC HDLC TDM Bundle

PW Solutions Overview TS2007 Slide 9 PW-Label MPLS Switching 2. Adding Tunnel Label ETH VCC/E1 Tunnel Label VCC/E1 PW-Label PSN-GW MPLS 1. User Services are mapped to PW VCC/E1 PW-LabelTunnel Label VCC ETH PSN-GW 4. PW Label mapped back to user services 3. The Tunnel Label is stripped VCC E1-TDM VCC E1-TDM Switching is done according to the Tunnel label PW-LabelVCC/E1

PW Solutions Overview TS2007 Slide 10 IP/ETH Switching 2. Adding Tunnel Label ETH VCC/E1 PW-Label PW-GW IP/ETH Network 1. User services are mapped to PW VCC ETH PW-GW VCC E1-TDM 4. PW Label mapped back to user services 3. The Tunnel Label is stripped E1-TDM Switching is done according to the IP addresses PW-Label IP HeaderVCC/E1 PW-Label IP HeaderVCC/E1 PW-LabelVCC/E1

PW Solutions Overview TS2007 Slide 11

PW Solutions Overview TS2007 Slide 12 TDM Backhaul/Trunking over PSN Target Customers Alternative Carriers save on leased line capacity from incumbent Large enterprises looking to save on leased line costs Benefits Small foot print with high capacity: 196xE1/T1 or 2xSTM-1/OC-3 for a 6U chassis Grooming of E1/T1 into lower cost STM-1/OC-3 ports GbE Gmux-2000 SDH Class 5 Switch E1/T1 Ch. STM-1/OC-3 Ethernet/ MPLS/IP GbE Gmux-2000 E1/T1 PABX

PW Solutions Overview TS2007 Slide 13 Target Customers Alternative Carriers Incumbents in migration or out of their network reach Benefits Unified TDM over packet solution regardless of access technology Enables Ethernet and TDM service on the same infrastructure Alternative carriers can increase revenue by selling TDM services PSTN Access over Packet GbE IPmux-11/14 Fixed Wireless IPmux-1E E1/T1 Fiber n x T1/E1 or Ch.OC-3/C.STM-1 IPmux-16 Cable Modem CMTS Cable HFC Infrastructure FT1/T1/n x T1 FE1/E1/n x E1 FT1/T1/n x T1 FE1/E1/n x E1 Gmux-2000 Ethernet/IP/ MPLS Ethernet IPmux-11/14 DSL Modem PSTN

PW Solutions Overview TS2007 Slide 14 2G/3G Cellular traffic over PSN Aggregation and tunneling (pseudo-wire) of both 2G TDM traffic and 3G ATM traffic over the same packet transport network Mapping of TDM/ATM traffic to packets Transparent backhaul of Abis and lub over the PSN Clock distribution and network synchronization 3G RNC 2G BSC STM-1 ETH CH-STM-1 Packet Switched Network PW-GW 3G Node B n x E1 IMA/UNI E1 TDM 2G BTS STM-1 PW-GW STM-1 ETH Node B n x E1 IMA/UNI PW GW

PW Solutions Overview TS2007 Slide 15 HSDPA Application – Cellular Backhaul over PSN/ATM Aggregation and tunneling (pseudo-wire) of both 2G TDM traffic and 3G ATM traffic over the same packet transport network HSDPA differentiation using two types of networks to reduce data transport cost Clock distribution and network synchronization 3G Node B E1/T1s ATM/IMA E1/T1s ATM/IMA 2G BTS ACE-3100 GbE STM-1 APS Redundancy STM-1 ACE G RNC FE Packet Switched Network SDH/ATM Access Network SGSN STM-1 APS Redundancy

PW Solutions Overview TS2007 Slide 16 3G Node B BTS E1 TDM LA-110 xDSL IP-DSLAM E1s LA-130 n  SHDSL GbE Gmux-2000 ACE-3400 GbE ATM IMA ATM IMA 2G/3G ATM over PSN Using DSL Access PSN E1 TDM traffic from the 2G BTS and E1 UNI/IMA traffic from the 3G NodeB is encapsulated as data and tunneled towards the BSC/RNC as TDM/ATM PW The ACE\Gmux terminates the TDM/ATM PW and hands the TDM/ATM traffic to the BSC/RNC PSN Eth/IP/MPLS 2G BSC 3G RNC ATM UNI STM-1

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PW Solutions Overview TS2007 Slide 18 IPmux-11, IPmux-14 IPmux-11 – 1xE1/T1 TDMoIP gateway Single E1/T1 port with 2 user Ethernet ports Single network port with copper or fiber Cost effective CPE/CLE providing both Ethernet and TDM service IPmux-14 – 2/4xE1/T1 or 1xSerial TDMoIP Gateway 2/4 E1/T1 ports with 2 user Ethernet ports Serial interface support for nx64, X.25, RS-232, V.35 legacy services Single network port with copper or fiber Grooming on time slot level IPmux-14/T & IPmux-14/A Support all IPmux-14 features including advanced timing mechanism compliance with adaptive clock according to G.823 Traffic/Sync interface IPmux-14 IPmux-11 IPmux-14/A

PW Solutions Overview TS2007 Slide 19 Gmux-2000 High-capacity carrier-class TDMoIP gateway Used as a central site solution for RAD’s TDMoIP products, operating opposite IPmux-1E, IPmux-11, IPmux-14/116, IPmux-8/16 and Megaplex ML-IP Modular chassis includes: GbETH network module Up to two STM-1/OC3 network modules Up to 196 E1 or T1

PW Solutions Overview TS2007 Slide 20 IPmux-116 Supports TDM, HDLC-based and Ethernet services over Ethernet, MPLS or IP networks with Pseudowire technology Ideal solution for Cellular backhaul, PSTN access and TDM trunking Provides cost effective solution for converging new and legacy services over packet infrastructure Up to 16 E1 or T1 ports Available for beta in Q2/2007 New

PW Solutions Overview TS2007 Slide 21 IPmux/Gmux Main Features Applicable over: L2/MPLS/IP networks/backbones Encapsulation protocols: TDMoIP OAM support Alarm forwarding propagation Clock recovery mechanism- Complies to G.823/4 Traffic interface & G.8261 ETH NTU Gmux Redundancy: STM-1/OC-3 port/module level redundancy GE port level redundancy (Phase 2.xx)

PW Solutions Overview TS2007 Slide 22 RAD’s TDMoIP Product Family Legacy Service Ethernet ServiceNetwork Link IPmux-1E Analog 4 FXS/FXO/E&M 4 BRI 1 user port Rate limit (optional) 1 UTP/Fiber Fast Ethernet IPmux-11 PBX 1 T1/E1 2 user ports: - Rate limit - VLAN tag+stack 1 UTP/Fiber Fast Ethernet IPmux-14 Carrier 4 T1/E1 or 1 Serial port 2 user ports: - Rate limiting - VLAN tag+stack 1 UTP/Fiber Fast Ethernet IPmux-8/16 Carrier 4/8/16 T1/E1 3 user ports per Eth. Module: - Rate limiting - VLAN tag+stack 1/2 x UTP or Fiber (SFP) Fast Ethernet Gmux-2000 Carrier 196x E1/T1 or C.OC-3/STM-1 2 GE ports (SFP) FE for mgmt 2 UTP/Fiber Gig Ethernet Product

PW Solutions Overview TS2007 Slide 23 ACE-3100 & ACE-3200 ACE-3100: 4 x T1/E1 UNI (ASAP) with 2 x STM-1 UNI 2 x Fast Ethernet ports – For OOB management or as an uplink for PSN support ACE-3200: 8/16 x T1/E1 UNI with 2 x STM-1 UNI 2 x Fast Ethernet ports – For OOB management or as an uplink for PSN support Redundant PS option (AC/DC) ACE-3100 ACE-3200

PW Solutions Overview TS2007 Slide 24 ACE-3400 & ACE-3402 ACE /63 E1/T1 UNI/IMA/CES (ASAP) 4 Pluggable network interfaces supporting 1 GbE Up to 3 STM-1 UNI (one for Redundancy) 3U, 19”, Fully modular ACE Pluggable network interfaces supporting 1xGbE 2 x STM-1 UNI 1+1 Channelized STM-1/OC3 with support for 63/84 E1/T1 over VC12/VT1.5 2U, 19”, Fully modular ACE-3402ACE-3400 Fully redundant, no single point of failure 2 swappable AC or DC power supplies Total front access

PW Solutions Overview TS2007 Slide 25 ACE-3600 Carrier class, without single point of failure Hot swappable cards with redundancy: 2 x main cards with software redundancy mechanism 2 x modules with 4 x ATM-155 and 1 x Gigabit Ethernet 2 x AC/DC power supply, must be of the same type Fan tray with 2 x fans, can operate with a single fan only Swappable cards with redundancy: Manage card with OOB Ethernet and terminal control ports Station clock – not swappable, not redundant Total front access New

PW Solutions Overview TS2007 Slide 26 ACE-3x00/PSN Main Features Applicable for backhauling over: L2/MPLS/IP networks/backbones Encapsulation protocols: ATM over PSN for 3G- ATMoPSN CES over PSN for 2G- CESoPSN/SAToP 1:1 and N:1 mapping mode (for ATMoPSN) PW connectivity verification Alarm forwarding support Clock distribution and synchronization support according to G.823 synchronization interface Multicast support LDP support- Label Distribution Protocol enables the device to learn the MPLS labels automatically (phase 5)

PW Solutions Overview TS2007 Slide 27 Physical Description ACE-3100ACE-3200ACE-3400ACE-3402ACE-3600 E1/T10/48/1632/63-- STM-1 OC-3c 2 (or 1+1) 2 (or 1+1) /100BT22--- GbE--111 Ch.STM-1 Ch.OC P/S Rdnt.NoYes Full Rdnt.No Yes

PW Solutions Overview TS2007 Slide 28 Feature Description ACE-3100ACE-3200ACE-3400ACE-3402ACE-3600 ATM VP/VC PWs Peers PW clock streams CES Bundles / N/A 1 A Peer represents a remote site (e.g. the Peer of the Cell-Site Gateway is the RNC Site Gateway and the Peers of the RNC site Gateway are the Cell-Site Gateway). 2 A CES bundle can be a single timeslot or a group of timeslots. Max. 8 bundles per E1/VC-12 3 Up to a total of 128 on E1 port version and 300 on Ch.STM-1 port version of the ACE-3400

PW Solutions Overview TS2007 Slide 29 LA-110 & LA E1\T1 ports (ATM or TDM) 1 CES and up to 3 ATM UNI or IMA 4 E1 ASAP – Q1/07 WAN interfaces SHDSL 4 pairs IMA ADSL2+ (Q2\07) User ports: 4 ISDN S0, 4 POTS, E1, T1 1 LAN interface 1 data port V.35/X.21 Network SHDSL, ADSL, E1-UNI, IMA LA-130 LA-110

PW Solutions Overview TS2007 Slide 30 RAD Pseudowire Product Guide Main Application “Over PSN” Products Port Count [E1, STM-1] Uplink Adaptive Clock Recovery Interworking with TDM Leased line TDM PSTN Access 2G cellular backhaul IPmux-1,11 IPmux-14 IPmux-8/16 Gmux ,2,4 4,8,12,16 196, 2xSTM-1 FE GE YES IPmux LA Cellular Backhaul ACE-3100 ACE-3200 ACE-3400 ACE , 2xSTM-1 8,16, 2xSTM-1 63, 2xSTM-1 2xCH-STM-1 FE GbE YESACE LA Cellular Backhaul TDM Leased Line PSTN Access LA-110 LA SHDSLH107 ACE IPmux Gmux

PW Solutions Overview TS2007 Slide 31 Summary The PW solution enables: Smooth migration to new packet based transport networks Good for voice, data and video traffic Provide a complete solution for TDM, ATM and DSL services over PSN using RAD PW products Transparent to protocols and signaling Reducing the cost by avoiding the need to use leased lines Controlled transport costs by maximizing utilization of RAN infrastructure Standardized by the IETF PWE3 working group

PW Solutions Overview TS2007 Slide 32 thank you for your attention Merav Shenkar BroadBand Access team