FibroLAN delivers SDH over Ethernet
October 18, 2004 Yoqneam-Illit, Israel -- FibroLAN Ltd. recently unveiled a technology that enables the efficient and stable tunneling of E1/T1 channels over Fast Ethernet links. It allows very precise, bandwidth efficient and stable connectivity of E1/T1 circuits--low jitter, extremely low latency (640µ seconds), occupying only 2.5 Mbits/sec per channel. The technology was first implemented in FibroLAN's CPE (the LTA41-xE1) and in the corresponding module for its MetroStar access concentrator.
The device aggregates IP traffic from 4 subscribers and 1 or 2 E1/T1 channels onto a single fiber link up to 150-km long. At the central office, the MCM100-xE1 module separates the composite bit-stream into the IP traffic, and the E1/T1 traffic-- maintaining its original attributes--is subsequently connected to the existing PDH/SDH infrastructure.
The solution has successfully completed carrier field tests and production units are already shipping.
The technology has proven attractive mainly to large carriers or ILECs, which frequently find themselves in strange competitive situations, say company representatives. Having completed their access network to SMEs (with tens--sometimes hundreds--of thousands of E1/T1 links at astronomical investments), they face difficulties in meeting their customers' demand for broadband IP. FibroLAN's solution provides them with a platform for IP services based on their existing infrastructure at a small incremental investment.
CLECs suffer from a similar, yet opposite problem; while successfully offering IP access, they cannot offer their customers voice services (as global VoIP networks are still far away). Using the LTA41-xE1, they can combine both types of services over a single infrastructure without any implications whatsoever on the user or network ends.
"The integration of SDH services in our best-of-breed Metro-Ethernet access systems, soon to be augmented by the inclusion of CWDM devices and other products, is in line with our long term strategy," notes Israel Stein, FibroLAN's CEO. "We aim to become, before the end of 2005, the leading supplier of the most comprehensive, integrated, and advanced access solutions for business users."