Pseudowire Technology. Enabling Cross-Generation Access. Pseudowires

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1 Pseudowire Technology Enabling Cross-Generation Access Pseudowires

2 Bridging Network Generations: From Legacy to Packet During the last decade, pseudowire technology has been established as the de facto enabler for migrating legacy communications services to next-generation networks. Born of the necessity to encapsulate and tunnel Layer 2 protocols across a Layer 3 network, pseudowires are implemented today in virtually every mainstream service, transparently carrying voice, video and data traffic end-to-end over Ethernet, IP or MPLS backbones. As the telecom industry transitions to economical, higher bandwidth packet transport, pseudowires ensure service continuity for legacy applications and provide cross-generation support for enterprises, service providers, carriers, and mobile operators. ext-generation

3 A Wide Spectrum of Users Since first introducing TDMoIP pseudowire encapsulation to the market in 1999, RAD Data Communications has deployed more than 60,000 TDM and ATM pseudowire ports worldwide. Our field-proven solutions benefit a wide spectrum of clients, in a multitude of applications: Incumbent carriers cut operating expenditures (OpEx) by moving to costeffective packet-switched networks, while ensuring quality delivery of their ongoing voice and data commitments to minimize customer churn. Service providers and cable operators with packet-based infrastructure grow their customer base by adding traditional leased line and private line services to their Layer 2 portfolio. Mobile operators and transport providers reduce backhaul costs and increase transmission capacity to accommodate new mobile broadband services, by streamlining all generations of mobile traffic over Ethernet and MPLS networks. Utility and transportation companies extend a wide variety of services to remote facilities while simplifying operations, ensuring network resiliency and securing a smooth migration path to packetswitched transport. Enterprises reduce their IT expenses on PSTN connectivity and branchto-branch communications. RAD s pseudowire customer located equipment (CLE) allows enterprises to replace expensive leased lines with cost-effective packet-based services, consolidating, ISDN BRI, video, and data traffic over a single, economical Ethernet link. Compelling Benefits Minimizing capital expenditures (CapEx) by eliminating the need to invest in separate, service-dedicated networks, or to replace existing enduser equipment installed-base Simplifying network management, maintenance and operations by allowing the use of integrated transport infrastructure for all service generations Enabling a non-disruptive upgrade of legacy services to future-ready networks without affecting service quality or customer experience Providing a quick route to packet transport s low cost, high capacity, scalability, and simplicity Allowing more users to be served by the same infrastructure by optimizing bandwidth efficiency Offering a high degree of flexibility in determining the migration path by allowing access agnostic delivery of all services and transmission protocols

4 What are Pseudowires? Pseudowire (PW) emulation is a method for transmitting TDM, ATM, Ethernet, or other Layer 2 protocols, over an IP, MPLS or Ethernet network. It allows a seamless connection between two network elements by creating logical links, or virtual tunnels, across the packet network. The transmitted data streams are encapsulated in packets upon entering the network, and then reconstructed at the pseudowire egress, where clocking information is also regenerated. As a result, realtime traffic is delivered transparently without distortion, avoiding the complexities of translating signaling data, while ensuring that synchronization criteria are met. A service-oriented technology, pseudowire emulation includes OAM (operations, administration and maintenance) functionality, known as VCCV (virtual circuit connectivity verification), which enables diagnostic monitoring of the pseudowire link. Ethernet/IP/ MPLS Network Service Traffic TDM/ATM/FR PW Tunnel Service Traffic TDM/ATM/FR PW Packets Standardizing Pseudowires Pseudowire s growing popularity has driven industry organizations to establish a comprehensive set of standards. These include TDMoIP, CESoPSN and SAToP for TDM pseudowires; VPWS and VPLS for Ethernet pseudowires; as well as detailed pseudowire schemes for ATM, HDLC and Frame Relay services. The pioneering author of various pseudowire RFCs, recommendations and implementation agreements, as well as a prominent member of the IETF, ITU, MFA, and MEF, RAD has been actively involved in the creation of the industry s major pseudowire standards. RAD also devotes continuous efforts to promote pseudowire interoperability among the vendor community for the benefit of users and operators alike.

5 iming While clocking data is transmitted natively in TDM networks, PSNs (packet-switched Timing over Packet networks) are inherently asynchronous because they were originally designed for delivery of data traffic. This creates a particular challenge in ensuring that packet transport meets SDH/SONET or better performance levels, so that it constitutes a viable carrier-class alternative to legacy technologies. Pseudowire emulation uses resilient clocking and synchronization methods to negate the effect of impairments, such as delay variation (jitter, wander) and packet loss, which are intolerable in delaysensitive services. In the last few years, the solutions for synchronization over packet have evolved from borderline science fiction to reliable mechanisms that are able to handle packet transport s inefficiencies, capture the average transmission rate of the original bit stream, and distribute accurate timing information to all network elements. Various TDM and ATM services have distinct clock recovery needs; mobile networks, in particular, require a high degree of synchronization to maintain proper service quality. Pseudowire network elements in cellular backhaul are therefore required to comply with stringent industry criteria as defined in ITU-T G.823/G.824 and G.8261, using standard methods such as Synchronous Ethernet, NTR and IEEE 1588v2. Such elements need to support definite frequency accuracy limits for various services, such as 50 ppb for GSM and 16 ppb for 2G CDMA and 3G UMTS.

6 roducts RAD s Pseudowire Solutions Product Guide RAD s pseudowire solutions cover a diverse mix of access devices, gateways and multiplexers from small customer-located equipment to high-capacity aggregation units for central offices or points-of-presence (POPs). Best of Breed In addition, our multiservice, multi-generation pseudowire gateways for cellular backhaul have won industry-wide recognition and were awarded the GSM Association s prestigious 2008 Global Mobile Award for Best Network Quality Intiative. RAN Cell-Site Gateways RAN Aggregation Site Gateways TDM Pseudowire Gateways Services and Physical Interfaces ACE-3100, ACE-3200 STM-1/OC-3 ATM UNI/IMA/CES LA-130, ACE-3105, ACE-3205 UNI/IMA/CES SHDSL/SHDSL.bis ADSL2+ STM-1/OC-3 ATM VDSL2 (ACE-3105,ACE-3205)* ACE-3400, ACE-3402, ACE-3600 Gigabit Ethernet STM-1/OC-3 ATM Ch. STM-1/OC-3 ATM (ACE-3400, ACE-3402) UNI/IMA/CES (ACE-3400) IPmux-1E, IPmux-14 Analog Voice (IPmux-1E) ISDN (IPmux-1E) Serial Data (IPmux-14) IPmux-24, IPmux-216 Gigabit Ethernet *with software upgrade

7 Featured Attributes Circuit extension over IP, using any media, including fiber, copper, HFC, microwave, and satellite access Dedicated ASICs featuring all TDM pseudowire modes End-to-end QoS attributes and VCCV-BFD OAM capabilities to meet service-specific performance criteria and ensure SLA enforcement V-based service differentiation and transparent delivery of user traffic Advanced clock distribution and synchronization capabilities, enabling clock precision accuracy levels of parts per billion (ppb) Hub-Site Pseudowire Access Gateway Integrated Access Device Modular Multiplexers SFP TDM Pseudowire Gateway Gmux-2000 Gigabit Ethernet Ch. STM-1/OC-3 Ch. T3 LA-110 ATM UNI/IMA/CES SHDSL/SHDSL.bis ADSL2+ ISDN Serial Data Frame Relay Megaplex-2100, Megaplex-2104, Megaplex-4100 SHDSL/SHDSL.bis Analog Voice Compressed Voice ISDN Serial Data (n x 64 kbps) MiTOP- Low Speed Data (Sub-64 kbps) Omnibus (Teleconference) G.703 Co-Directional OCU-DP Teleprotection STM-1/OC-3

8 Application Diversity Cellular Backhaul Migration to Packet Transport Enable transparent delivery of legacy 2G TDM traffic and 3G ATM traffic, together with HSPA and rich-content applications, over Metro Ethernet and MPLS transport Facilitate additional cost reduction for cellular transport through aggregation, HSPA offload and by leveraging commodity-priced xdsl links Ensure highly accurate and bandwidth-efficient synchronization over any media, whether bonded copper, fiber or Ethernet microwave Allow uniform, high quality service provisioning and management, regardless of the underlying physical layer Support FMC and evolving standards such as mobile WiMAX and LTE/SAE BTS/ Node B n x TDM/ATM n x n x TDM/ATM BTS/ Node B ACE-3105 ACE-3205 n x SHDSL ADSL2+ n x SHDSL & ADSL2+ IP DSLAM 63 x Node B BTS/ Node B BTS/ Node B n x TDM/ATM IMA STM-1/OC-3c FE TDM/ATM LA-130 ACE-3100/ACE-3200 FE PSN Ethernet/IP/ MPLS ACE-3400/ ACE-3402/ ACE-3600 Ch. STM-1/ OC-3c STM-1/OC-3c BSC RNC Node B Ethernet Access Rings for Cellular Transport Support multi-generation/multi-operator collocation at the same tower Maintain clocking integrity by accurately regenerating timing data per cellular operator Support tower clusters with Fast/Gigabit Ethernet access rings serving up to 400 Enhance service reliability through network resiliency and redundancy Enable SLA enforcement and QoS guarantees with traffic engineering and diagnostic capabilities Operator A MSC STM-1/OC-3 Fiber IPmux Operator B MSC STM-1/OC-3 Gmux Gmux Metro Ethernet MPLS Ethernet Access Ring or Daisy Chain IPmux IPmux

9 Applications TDM and ATM pseudowire variants will be the most widely supported Ethernet-enabling capability in hub nodes A Heavy Reading market report, March 2008 Service Extension over Packet Access Converge multiple services with unified management to reduce OpEx Streamline all carrier services over packet, while maintaining first-rate service quality Support existing end-user equipment to protect capital investments SDH/SONET Carrier Network PSTN n x n x n x Ch. T3 Ch. STM-1/OC-3 Service POP RADview Service Center IPmux-216 Telephony switch Gmux-2000 Ethernet/IP/ MPLS Network Enable service extension from legacy backbones over Greenfield packet networks, using copper, fiber or radio links, without affecting customer experience Fixed wireless FE Fiber FE copper Small/Medium Enterprise copper >> SCADA copper Megaplex-2100/ Megaplex-2104 IPmux-1E Large Enterprise IPmux-24/ IPmux-216 IPmux-1E IPmux-24 4 x IPmux-24/ IPmux-216 Remote Site Serial data Analog FXS Multi-tenant Office Building FXS /FE

10 Leased Line Replacement with Packet Transport for Enterprises Support point-to-point connectivity between remote sites Reduce communications outlays by replacing expensive leased lines with low-cost packet transport Allow high quality delivery of voice and data traffic between corporate headquarters, regional centers and dispersed locations Site A Ensure service resiliency in traffic-heavy applications for financial organizations, educational institutions, etc. Provide on-demand extension of TDM connections over packet-switched networks with plug-and-play SFP-format gateways Site B 4 x IPmux-24 Packet Switched Network IPmux-24 4 x Remote Sites IPmux-24 4 x n x Ch. T3 n x Ch. STM-1/OC-3 Headquarters Gmux x Packet Switched Network IPmux-24 4 x n x Ch. T3 n x Ch. STM-1/OC-3 Gmux-2000 MiTOP Ethernet Switch/Router with MiTOP Frame Relay Interworking and Leased Line Extension over DSL Extend leased line services over SHDSL and new packet networks to deliver multiple voice, legacy data and Ethernet services with a single integrated access device Reduce OpEx by using economical Ethernet, IP or MPLS networks and widespread DSLAM infrastructure Enable users to keep their existing equipment while transitioning to high-rate, low-cost transport Maintain quality of service and ensure minimum delay for mission-critical and real-time applications FRAD or router DSLAM DSLAM SHDSL SHDSL X.21 X.21 V.35 PSN Core V.35 Router LA-110 LA-110 Site A V.35 Site B LA-110 SHDSL Switch Frame relay switch Frame Relay Network Site C FRAD or router Site D Router >>

11 Legacy Voice and Data Multiplexing over PSNs for Utilities and Transportation Enable cost-effective multi-site connectivity over packet in daisy-chain and ring topologies Carry a variety of services, including, SCADA, control traffic, video surveillance feeds, and low-rate data, using a fully-redundant, single-box solution Perform voice and data aggregation in remote locations and efficiently deliver traffic to control centers over packet transport Present an easy migration path to PSNs with future-proof, modular equipment allowing gradual service adoption Provide service protection through resilient Fast Ethernet rings and full redundancy Support all intra-site, inter-site and control center communication needs for utility and transportation companies, as well as in-campus, government and military applications SCADA Voice SCADA Relays Voice SCADA Sensors Voice FO FO Megaplex-2100 Megaplex-2104 Megaplex-2104 Control Center Analog/Digital Voice/SCADA, Ethernet SCADA Voice Megaplex-4100 Megaplex-2104 Control PSN Ethernet/IP/MPLS Video Voice Megaplex-2100 Megaplex-2100 Resilient Fast Ethernet Ring SCADA Video Voice Megaplex-2104 Megaplex-2100

12 International Headquarters RAD Data Communications Ltd. 24 Raoul Wallenberg Street Tel Aviv 69719, Israel Tel: Fax: North America Headquarters RAD Data Communications, Inc. 900 Corporate Drive Mahwah, NJ 07430, USA Tel: Toll free: Fax: Regional Offices Far East RAD Far East Ltd. Suite A, 26/F, One Capital Place 18 Luard Rd., Wanchai Hong Kong, China Tel: Fax: Latin America RAD América Latina S.A. Arévalo 2774, Floor Buenos Aires, Argentina Tel: Fax: info@radal.com.ar Oceania RAD Australia Pty. Ltd. 434 St Kilda Rd, Suite 412 Melbourne, Victoria 3004, Australia Tel: Fax: info@raddata.com.au Local Offices Brazil RAD do Brasil Ltda. Edifício Diamond Tower Rua Maestro Cardim, 1.191, 13º andar, Cj. 135 CEP , São Paulo, SP, Brazil Tel: Fax: market@radbr.com.br China RAD China Suite 801, Global Trade Center 36 Beisanhuan Donglu Dongcheng District Beijing , China Tel: Fax: info@raddata.com.cn France RAD France Vecteur Sud - Bat A 1er étage 70-86, Avenue de la République Chatillon, France Tel: Fax: info@rad-france.fr Germany RAD Data Communications GmbH Otto-Hahn-Str Ottobrunn-Riemerling Germany Tel: Fax: info@rad-data.de India RAD Data Communications Pvt. Ltd. 407, Madhava, Plot No. C-4, E-Block Bandra-Kurla Complex Bandra (East) Mumbai India Tel: Fax: radindia@rad.com Japan RAD Japan K.K. Bureau Toranomon 10F Toranomon, Minato-ku Tokyo, Japan Tel: Fax: japan-rad@raddata.co.jp Russia RAD Data Communications Ltd. 10, B. Tulskaya St., Building 9 Floor 7, Office 9705 Moscow, , Russia Tel: Fax: info_russia@rad.ru United Kingdom RAD Data Communications Ltd. (UK) 6 Fortuna Court, Calleva Park Aldermaston, Berkshire RG7 8UB England Tel: Fax: info@raddata.co.uk The RAD name and logo and the term TDMoIP are registered trademarks of RAD Data Communications Ltd. All product names are the property of RAD Data Communications RAD Data Communications Ltd. All rights reserved. Subject to change without notice. Catalog no Version 06/08.

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