Symbol multiplexing physical medium attachment (pma)
AssigneeCisco Technology, Inc.
InventorsAdee Ran, Mark A. Gustlin, Aviran Kadosh
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Abstract
Symbol multiplexing Physical Medium Attachment (PMA) may be provided. A plurality of first lanes may be received and then Alignment Markers (AMs) from the plurality of first lanes may be used to determine symbol boundaries and identify the plurality of first lanes. Next, groups of the plurality of first lanes may be de-skewed and checkerboard patterns in the plurality of first lanes may be undone. Then the plurality of first lanes may be symbol-wise multiplexed to a plurality of second lanes. The plurality of second lanes may then be sent.
Claims20
A method comprising:
- receiving a plurality of first lanes;
- de-skewing groups of the plurality of first lanes;
- undoing checkerboard patterns in the plurality of first lanes;
- symbol-wise multiplexing the plurality of first lanes to a plurality of second lanes;
- and
- sending the plurality of second lanes, wherein the plurality of second lanes are symbol-wise de-multiplexed to a plurality of third lanes, and wherein checkerboard patterns are applied to the plurality of third lanes to recreate the plurality of first lane.
A system comprising:
- a memory storage;
- and
- a processing unit coupled to the memory storage, wherein the processing unit is operative to:
- receive a plurality of first lanes wherein the plurality of first lanes comprise Physical Coding Subsystem (PCS) lanes;
- de-skew groups of the plurality of first lanes;
- undo checkerboard patterns in the plurality of first lanes;
- symbol-wise multiplex the plurality of first lanes to a plurality of second lanes;
- and
- send the plurality of second lanes.
A non-transitory computer-readable medium that stores a set of instructions which when executed perform a method executed by the set of instructions comprising:
- receiving a plurality of first lanes wherein the plurality of first lanes comprise Physical Coding Subsystem (PCS) lanes;
- de-skewing groups of the plurality of first lanes;
- undoing checkerboard patterns in the plurality of first lanes;
- symbol-wise multiplexing the plurality of first lanes to a plurality of second lanes;
- and
- sending the plurality of second lanes.
Dependencies are inferred from the claim text.