ATM over Ethernet

ATM over Ethernet provides the solution for service providers who are migrating to packet switched networks, yet wish to continue supplying ATM-based services.

Service providers have deployed a massive quantity of ATM backbone equipment and ATM DSLAMs in past years. Despite the steady replacement of these devices with lower-cost Ethernet and MPLS switches or upgrades to IP DSLAMs, ATM switches are still being used for aggregation and transport of voice, Frame Relay and transparent LAN services while ATM DSLAMs continue to support Internet access for residential and business customers. 
 
To ensure that service providers can maintain their commitment to deliver ATM-based services to existing customers, yet permit them to leverage their investment in packet-switched Metro Ethernet or MPLS infrastructure, RAD has introduced support for ATM pseudo-wire in its Ethernet Access product family, enabling a large range of ATM over Ethernet services.  
 
RAD’s Ethernet Access devices with ATM pseudo-wire encapsulate and tunnel ATM UNI, ATM IMA and CES traffic – as well as Ethernet – transparently over Ethernet, IP and MPLS networks. High precision clock recovery mechanisms for a packet switched network environment, compliant with ITU G.823/824 specifications in the presence of packet delay variation and packet loss, ensure the integrity of network timing end-to-end across the packet switched network. Maintaining accurate synchronization in non-deterministic networks such as ATM over Ethernet, IP or MPLS is crucial for leveraging Metro Ethernet and MPLS for cellular backhaul and other applications.
 
Enterprise users can also benefit from RAD’s Ethernet Access product family with ATM pseudo-wire support. Not only do the products allow them to migrate their applications to cost-effective Ethernet WANs, but they are also enable them to preserve their investment in existing ATM customer premises equipment and avoid t