The LineSpeed Flex Multi-Link Gearbox devices (MSH321 for Modules and MSH322 for Line Cards) supports both OIF MLG-1.0 and MLG-2.0 standards that aggregate a combination of 10GE and 40GE links, up to 100G total bandwidth, and converts that to a single 100GE (4x25G) link. The difference between the MLG and a standard gearbox based on IEEE 802.3ba is that rather than requiring all 10 lanes to be bonded as 10x10G with zero ppm offset, MLG allows independent 10GE or 40GE lanes, separated by up to +/- 100ppm to be multiplexed into a single 100GE pipe.

The MoSys MLG devices perform all alignment marker insertion and awareness, idle insertion and deletion, and data alignment required by the OIF MLG standards. As physical interfaces on switching and packet processing ICs move to 25G PHY interfaces for performance and board density, the MLG function allows large scale systems built with these devices to support higher port counts of legacy 10GE and 40GE interfaces.

The devices support IEEE 10G, 40G and 100G interface standards and OIF-CEI-3.0 10G and 25/28G specifications. It supports on-chip PRBS generation and error checking


Application Example


Key Features

  • Supports OIF MLG 1.0 and MLG 2.0 Standards
    • 10 Independent 10GE links into 100GE (4x25G)
    • Mix of 10GE and 40GE links into 100GE (4x25G)
  • Supports IEEE and OIF 10, 40, and 100G standards
  • Self adapting equalizer - eye opening capability
  • Transmitter and TX pre-emphasis
  • Per lane PRBS generator and bit error rate checker
  • Monitor, Alarm and reference clock support
  • Small package form factors 12x12mm for module and 17x17 for line cards

Product Brief

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