100 Gigabit Ethernet Physical standards

The 40/100 Gigabit Ethernet standards encompass a number of different Ethernet physical layer (PHY) specifications. A networking device may support different PHY types by means of pluggable modules. Optical modules are not standardized by any official standards body but are in multi-source agreements (MSAs). One agreement that supports 40 and 100 Gigabit Ethernet is the C Form-factor Pluggable (CFP) MSA[6] which was adopted for distances of 100+ meters. QSFP and CXP connector modules support shorter distances.

The standard supported only full-duplex operation. Other electrical objectives include:

Preserve the 802.3 / Ethernet frame format utilizing the 802.3 MACPreserve minimum and maximum FrameSize of current 802.3 standard Support a bit error ratio (BER) better than or equal to 10 ? 12 at the MAC/PLS service interfaceProvide appropriate support for OTNSupport MAC data rates of 40 and 100 Gbit/s

Provide Physical Layer specifications (PHY) for operation over single-mode optical fiber (SMF), laser optimized multi-mode optical fiber (MMF) OM3 and OM4, copper cable assembly, and backplane.

August 14, 2011

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