100G Lambda MSA is an industry consortium with a common focus to provide a new set of optical interface specifications, developed around an optical channel data rate of 100Gb/s. These specifications are targeted for 100GE and 400GE applications to be used as cost effective solution for high density multi-Terabit Switching, Routing and Transport networks.
100G Lambda MSA defines 100G PAM-4 optical signaling and encoding, FEC and link characteristics for 100G and 400G applications using 100Gb/s per optical channel for 2km and 10km reaches. The MSA will leverage the IEEE 802.3 draft specifications and methodology for similar 100 Gb/s single channel specifications over 500m of single-mode fiber – specifically 100GBASE-DR and 400GBASE-DR4. The MSA specifications will be consistent with the IEEE specifications in PAM4 signaling and RS (544, 514) FEC to maintain compatibility with existing system and PHY technology currently under development.
Currently, the most popular 100Gb/s optical standards such as 100GBASE-LR4, 100G-CWDM4, 100G-PSM4, rely on 25 Gb/s optical lanes that align with 25Gb/s SERDES commonly used on ASICs for the switching, routing and transport applications. As ASIC SERDES increase in speed, it is necessary to increase the optical channel speeds to avoid additional cost that comes from needing to translate to slower speeds. Cost savings can further be realized by reducing the number of optical lanes and increasing the speed from four times 25Gb/s per lane to a single lane of 100Gb/s. It has been recognized by the IEEE and the members of this MSA that a single optical lane of 100Gb/s can be at least 40% lower cost than four lanes of 25G. The MSA members expect 400 Gb/s specifications defined by the MSA using 100Gb/s per optical channel will be much more conducive to high density, and lower cost, implementations in module form factors and networking systems.
Twenty-two industry leaders join forces to accelerate industry specification of 100 Gbps per wavelength optical specifications San Jose, California – September 12, 2017 — The 100G Lambda Multi-Source Agreement (MSA) Group has announced their intent to develop specifications based on 100 Gbps per wavelength optical technology. Under the MSA, participating companies are addressing the technical challenges of achieving optical interfaces utilizing 100 Gbps per wavelength technology ensuring optical interoperability for transceivers and interfaces produced by different manufacturers and in various form factors. These new optical specifications target the next generation of networking equipment that is required to address the industry’s ever-growing need for bandwidth.