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128 gigabit fibre channel physical architecture

  • US 10,153,989 B2
  • Filed: 08/31/2016
  • Issued: 12/11/2018
  • Est. Priority Date: 06/25/2013
  • Status: Active Grant
First Claim
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1. A physical layer network interface link apparatus comprising:

  • a media access control (MAC) interface for connection to a MAC layer providing or receiving a stream of 64 bit blocks;

    a physical media attachment (PMA) interface for connection to a PMA layer utilizing four lanes;

    a transmit path connected to and between said MAC interface and to said PMA interface; and

    a receive path connected to and between said MAC interface and to said PMA interface,wherein said transmit path includes;

    an encode module connected to said MAC interface;

    a scramble module connected to said encode module;

    a block distribution module connected to said scramble module;

    a transmit transcode module to transcode from 64b/66b blocks to 256b/257b blocks coupled to said block distribution module;

    an alignment marker insertion module connected to said transmit transcode module;

    a Reed-Solomon (RS) forward error correction (FEC) encode module connected to said alignment marker insertion module; and

    a symbol distribution module connected to said RS FEC encode module and said PMA interface, andwherein said receive path further includes;

    an alignment lock and deskew module connected to said PMA interface;

    a lane reorder module connected to said alignment lock and deskew module;

    an RS FEC decoder module connected to said lane reorder module;

    an alignment marker removal module connected to said RS FEC decoder module;

    a receive transcode module to transcode from 256b/257b blocks to 64b/66b blocks connected to said alignment marker removal module;

    a descramble module coupled to said receive transcode module; and

    a decode module connected to said descramble module and said MAC interface, andwherein said alignment markers are in the form of an alignment marker pair, said alignment marker pair including a first alignment marker for lane zero and a second alignment marker for the appropriate lane on which said alignment marker pair is provided.

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