New 10GE Modules Meet the Bandwidth and Service Delivery Demands of Leading Carriers Worldwide While Enabling Migration to End-to-End Carrier Ethernet

Petaluma, CA, June 18, 2007 – Turin Networks, a global provider of metro transport and switching solutions for wireline, wireless, MSO and private networks, today introduced two new 10-Gigabit Ethernet switching and transport modules for its flagship Traverse® Multiservice Transport Switch. The new Traverse 10GE Modules enable large carriers worldwide to address requirements for high-capacity 10-Gigabit Ethernet and Gigabit Ethernet infrastructure and services as they transition to an end-to-end Carrier Ethernet network.

10-Gigabit Ethernet is rapidly emerging as service providers’ technology of choice for infrastructure applications such as inter-carrier peering and inter-connecting routers to the Internet or IP/MPLS core networks, as well as for retail business Ethernet services for bandwidth-intensive vertical markets such as finance, and healthcare. Gigabit Ethernet, meanwhile, has become the de facto standard for inter-connecting IP-based broadband access devices such as BLCs, IP-DSLAMs and CMTSs for triple play service transport. Gigabit Ethernet is also eclipsing 10/100 Fast Ethernet as the dominant interface for Ethernet-over-fiber business services.

The Traverse 10GE Modules are available in two configurations: a one-port 10-Gigabit Ethernet module supporting up to 80km optical reach, and a ten-port Gigabit Ethernet module supporting any mix of optical or electrical GbE interfaces via pluggable SFP modules. With these high-density Traverse 10GE Modules, the Traverse platform can support up to nine 10 GbE ports or 90 1 GbE ports in a single shelf. Each module is a non-blocking Ethernet switch with 20Gbps bidirectional switching capacity.

“Ethernet as a service is growing more than 35 percent a year and we're starting to see it grow as a transport layer, too,” said Ron Kline, Research Director of Optical Networking at Ovum RHK. “The capability to provide scaleable, integrated Ethernet switching and transport in a manner consistent with traditional SONET/SDH approaches is now a critical requirement of network operators.”

The new modules enable carriers to offer the complete set of Metro Ethernet Forum-defined services, including Ethernet Private Line, Ethernet Virtual Private Line, multipoint E-LAN, and point-to-multipoint E-Tree services, each with granular bandwidth profiles and rate shaping configurable in 1 Mbps increments. The modules’ advanced QoS capabilities enable service providers to offer multi-CoS Ethernet L2VPNs with 50ms protection/restoration and Ethernet PMs for high-value SLAs. Unlike Ethernet capabilities on MSPPs and optical packet transport products, the Traverse 10GE modules support service oversubscription and service multiplexing for highly efficient transport bandwidth utilization. The Traverse 10GE modules also support increasingly popular E-LAN multipoint Ethernet services, eliminating the need for Ethernet switches or switched Ethernet overlay networks.

“Deployments of bandwidth-intensive, IP-centric services and applications like multipoint Layer 2
VPNs and IPTV are driving the requirement for a network core that is optimized for delivering
end-to-end Carrier Ethernet services,” said Henry Wasik, president and CEO of Turin Networks. “When used in the Traverse Multiservice Transport Switch, the Traverse 10GE Modules are the industry’s leading solution for enabling service providers to increase optical network capacity and migrate from TDM to Ethernet switching and transport in the same platform.”

About the Traverse Platform

Turin’s Traverse Family of Multiservice Transport Switches delivers new levels of versatility, reliability and performance to metro service edge networks by enabling diverse network operators to increase bandwidth capacity and deliver new IP and Ethernet services more rapidly and efficiently. The NEBS-compliant, carrier-grade Traverse platform aggregates, switches and transports any mix of Carrier Ethernet and TDM services from a single shelf. The Traverse platform is optimized for deployments in service hubs, central offices, cable headends, co-location facilities and other high capacity sites.

About Turin Networks

Turin Networks Inc. is a global provider of metro transport and switching solutions for wireline, wireless, MSO and private networks. Turin’s iConnect™-based solutions facilitate migration to end-to-end Carrier Ethernet over any media for all types of network operators. Turin’s products have been deployed by more than 300 customers worldwide to increase revenue through expanded optical network capacity and efficient delivery of new Ethernet/IP-based services. Turin is headquartered in Petaluma, California with R&D facilities in Petaluma, Dallas and Boston, and sales offices throughout the world. For more information, visit www.turinnetworks.com or call 707-665-4400.