256b257bTranscodingfor100Gbs.PDF

256b/257b Transcoding for 100 Gb/s Backplane and Copper Cable IEEE 802.3bj March 12-16, 2012, Waikoloa, HI Roy Cideciyan - IBM Supporters Zhongfeng Wang – Broadcom Adam Healey – LSI Stephen Bates – PMC-Sierra Mounir Meghelli – IBM Mark Gustlin – Xilinx Dariush Dabiri – AppliedMicro Myles Kimmitt – Emulex Vasudevan Parthasarathy – Broadcom Jeff Slavick – Avago Technologies Troy Beukema – IBM Sudeep Bhoja – Broadcom Arthur Marris – Cadence Matt Brown – AppliedMicro Andre Szczepanek – Inphi Oren Sela – Mellanox Barry Barnett – IBM Pravin Patel – IBM Daniel Dove – AppliedMicro Martin Langhammer – Altera Frank Chang – Vitesse John Ewen – IBM Stephen Trowbridge – Alcatel-Lucent IBM 256b/257b Transcoding for 100 Gb/s Backplane and Copper Cable 2 Introduction 512b-based transcoding (TC) 512b/513b TC scheme for 40 Gb/s ethernet: trowbridge_01_0707.pdf 512b/513b TC scheme for 100 Gb/s ethernet backplane and copper cable: cideciyan_01a_0911.pdf 512b/514b TC scheme for 100 Gb/s ethernet: a) Teshima et al. “Bit-Error-Tolerant (512*N)B/(513*N+1)B Code for 40Gb/s and 100Gb/s Ethernet Transport”, INFOCOM 2008, b) cideciyan_01a_1111.pdf, c) wang_01a_1111.pdf, d) gustlin_01_0112.pdf and e) brown_01_0112.pdf The granularity of 256b-based TC simplifies processing of alignment markers: gustlin_01_0312.pdf 256b/257b TC with reshuffling: FEC Proposal for NRZ-Based 100G-KR Systems, Broadcom, Feb. 8, 2012. A proposal is shown for 256b/257b transcoding w/o reshuffling that can be used for both NRZ and PAM4 signaling IBM