ECI Telecom Adds 10GB LAN Transport to DWDM Platform

ECI Telecom Ltd. today announced a standards-based solution for 10GB LAN transport over DWDM that enables Ethernet and IP over DWDM using Optical Transport Network (OTN) protocols. The new capability is available for ECI Telecom’s XDM DWDM platform using a 10GB LAN transponder, which already has been tested successfully for interoperability with core IP routers.

10GB Ethernet standards for LAN and WAN are incompatible. While the WAN PHY at 9.9gbps operates at data rates compatible with SONET OC192 and SDH STM64, 10GB E LAN PHY at 10.3gbps does not.

ECI’s solution takes advantage of OTN, which the company considers to be the likely replacement for SONET in optical networks. However, the ITU-T has yet to standardize the mapping of 10gbps LAN to OTN. There are several competing techniques for doing this, such as dropping the LAN PHY overhead or overclocking (see related article).

In contrast, ECI’s approach maps Ethernet overhead into unused bytes in the OTN frame – neither dropping it nor exceeding the standard OTN frame size.

“What we are proud of is the innovative way we have bridged the bit gap,” said Ram Orenstein, director of product line management of xWDM for ECI Telecom, noting that the solution remains fully standard OTN on the line side and does not compromise the Ethernet side by overriding bits or rate limiting.

The solution was released to non-U.S. markets in March and already is being used in multiple networks, including RCS & RDS in Romania, Bezeq in Israel and additional carriers in Eastern Europe, India and Korea.

“We are experiencing a growing demand for 10G LAN over DWDM services, both for connecting our core IP routers and as a service for high profile business customers,” said Michel Hivert, vice president of engineering and planning division of Bezeq in a press statement. “ECI’s solution enables us to offer new services today, and to seamlessly introduce up to 40G connectivity when necessary.”

ECI Telecom Ltd. www.ecitele.com

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