Chronos Tests Confirm RAD’s IPmux Facilitates Transition to Next Generation Networks by Offering TDM Level Clock Synchronization on IP networks
RAD Helps Mobile Operators and Broadcasters to Clock on to IP Chronos Tests Confirm RAD's IPmux Facilitates Transition to Next Generation Networks by Offering TDM Level Clock Synchronization on IP networks Tel Aviv, January 22, 2007: According to tests carried out by the industry-leading test house Chronos, classic problems such as data loss and errors that are deterring fixed and mobile operators and broadcasters from migrating traffic from TDM (telephone) to IP (Internet Protocol) networks can be eliminated by deploying RAD Data Communications' IPmux pseudowire gateways. In addressing accurate clock synchronization over IP networks, the IPmux allows companies, including mobile operators, to switch over to low-cost IP networks without fear of sacrificing core functionality that can be lost as a result of timing issues. Fixed and mobile operators, as well as IPTV, mobile TV and digital broadcasters often rely on time dependent processes and require accurate clock synchronization to run their network and for functions such as monitoring and SCADA. Chronos confirmed that the advanced algorithms that RAD has incorporated into its IPmux pseudowire gateways overcome the major clock accuracy barrier posed by migration to packet switched Ethernet, IP and MPLS networks. This has been a daunting problem because while TDM networks inherently deliver timing along with their data, packet switched networks (PSNs) don't transfer any timing information whatsoever. "In business timing is everything," states Gaby Junowicz, Director of Business Development for Cellular and Wireless Networks at RAD Data Communications. "Many mobile operators have been offered the carrot of GSM and 3G cellular backhaul over low-cost IP but have been unable to migrate because it means losing vital time-dependent services," he explains. "In delivering accurate clock synchronization in IP networks, organizations can be assured that the benefits of IP won't be gained at the expense of time sensitive services." Strategic Sync Testing Chronos offers Strategic Sync Testing Consultancy to evaluate products and services to ensure that they're fit for purpose or perform to network requirements. Chronos' industry-respected Next Generation Network Sync Testing Consultancy is aimed at manufacturers, users and network operators that provide or connect equipment or services impacted by poor sync to the next generation of packet-based telecom networks. RAD's patented TDM over IP (TDMoIP(r)) technology enables transport of TDM traffic over Ethernet, IP and MPLS PSNs. It segments and encapsulates TDM bit-streams and then transports packets containing TDM payloads across the PSN. At the remote end of this "pseudowire" the TDM signal is reconstructed, emulating the original TDM transport. GSM/3G Mobile Base Stations The tests were proposed to evaluate the suitability of RAD's IPmux solutions to provide synchronization to telecom network applications - for example, GSM/3G mobile base stations. A number of different scenarios were proposed to include ideal conditions, conditions representing normal network operation and performance during network failure scenarios. Testing was carried out on two systems, one used as a transmitter representing the network end and the other used as a receiver representing the customer end (e.g. base station case). Conforms to G.823 and ITU-T G.8261 Standards In the Chronos test, the IPmux pseudowire gateways provided TDM equivalent performance by conforming to G.823 jitter and wander requirements. The solutions demonstrated conformance when tested under ITU-T G.8261, a standard defining testing methodology and accuracy criteria for clock transport over packet networks. G.8261 includes network impairment scenarios to simulate more realistic network conditions. The IPmux also demonstrated its ability to provide very high frequency accuracy - much better than the required 50 ppb. The tests performed show that given the requirement to prioritize the TDMoIP traffic, stable synchronization signals were transported across the test network. About RAD Founded in 1981, RAD Data Communications is now marking 25 years of innovation as an industry leader in the development of access solutions for data and telecommunications applications. RAD's solutions serve the data and voice access requirements of service providers, incumbent and new carriers, and enterprise networks, by reducing infrastructure investment costs while boosting competitiveness and profitability. The company's installed base exceeds 10,000,000 units and includes more than 150 carriers and operators around the world. These customers are supported by 23 RAD offices and more than 300 channel partners in 164 countries. RAD is a member of the RAD Group of companies, a world leader in networking and internetworking product solutions. |