Dishwasher: Ethernet service

Sunday 6 January 2013

Ethernet service

UETS/EFR (Universal Ethernet Telecommunications Service/Ethernet Fabric Routing) is an architecture model conceived by the company L&M as a new Ethernet based switching architecture capable of performances up to one Terabit per second. It is based on hardware switching of Ethernet frames using topological and hierarchically assigned standard local MAC addresses. The architecture solves Ethernet's scalability and security problems, has low cost/performance ratios and is compatible with existing Ethernet and IP networks, providing a non disruptive migration path to high performance networks and overcoming TCP/IP performance limitations.
Currently, this model is in a conception phase and there are a number of papers proposing it from L&M.The Metro Ethernet Forum does not specify how Ethernet services are to be provided in a carrier network. Despite the advantages described above, Ethernet has traditionally had a number of limitations in the WAN application. The "bridge" and "spanning tree" concepts described above do not scale to large international networks. Moreover, Ethernet has lacked some of the dependability features necessary in this application (in particular, mechanisms to isolate one customer's traffic from another, to measure performance of a customer service instance, and to rapidly detect and repair failures in large networks).[citation needed] Because of these limitations, and because of the need to make use of pre-existing equipment, Ethernet services have been carried across wide area networks using other technologies. Two types of technology have been widely used, while a third (Carrier-Ethernet transport) is rapidly emerging as a viable and logical option for Carrier-Ethernet services.