MINIMUM LATENCY LINK LAYER METAFRAMING AND ERROR CORRECTION

摘要

Embodiments generally provide techniques for minimizing latency and/or power consumption for communications on a link. Embodiments include receiving a stream of bits within a metaframe. Upon determining that a cyclic redundancy check (CRC) for a portion of the stream of bits is valid, the portion of the stream of bits is forwarded without performing forward error correction (FEC) decoding for the first portion. Upon determining that a CRC for the portion of the stream of bits is invalid, FEC decoding is performed for the portion before forwarding the portion of the stream of bits. Embodiments also include generating a metaframe for transmission over a link, and upon determining that a current measure of network throughput is less than a predefined threshold amount of network throughput, inserting one or more checkpoints into the metaframe to create different segments of the metaframe. The metaframe is then transmitted over the link.

主权项

1. A method, comprising:
receiving, via a first port of a plurality of ports, a stream of bits within a metaframe; upon evaluating a first cyclic redundancy check (CRC) for a first portion of the stream of bits and determining that the first CRC is valid, forwarding the first portion of the stream of bits without performing forward error correction (FEC) decoding for the first portion of the stream of bits; and upon evaluating a second CRC for a second portion of the stream of bits and determining that the second CRC is invalid, performing FEC decoding for the second portion of the stream of bits before forwarding the second portion of the stream of bits.