Modified 64/66 Encoding Scheme Eliminates Idle Bytes
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Solution Overview
Problem
In data center environments, traditional 64/66 encoding schemes waste bandwidth by using idle bytes to pad packets to a fixed size, leading to inefficiencies in data transmission.
Innovation Solution
A modified 64/66 encoding scheme that removes padding bytes by concatenating data segments with packet delimiters, allowing for continuous data streaming without padding, and using a repacking process logic to achieve efficient data packing and unpacking across network links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional 64/66 encoding scheme is used to pad packets to fixed size, then packet transmission is simplified, but bandwidth is wasted due to idle bytes
Solution Approach 1:
The patent extracts and removes the padding bytes (idle bytes) from the packet transmission process. By implementing a modified 64/66 encoding scheme that eliminates the need for padding, the system transmits only necessary data bits, thereby eliminating bandwidth waste while maintaining transmission simplicity through automated padding removal at the receiving end
Solution Approach 2:
The patent changes the encoding parameters from traditional 64/66 encoding with padding to a modified scheme that transmits variable-length data segments without padding. This parameter change allows the system to adapt packet sizes to actual data requirements, eliminating idle bytes while maintaining synchronization through modified delimiters and framing mechanisms
2Ease of operation
If padding bytes are used to fill unfilled data slots, then data transmission is simplified, but transmission efficiency decreases
Solution Approach 1:
The patent removes the padding mechanism from the data transmission process. By implementing padding removal logic at the receiving end and using modified delimiters to mark packet boundaries, the system maintains operational simplicity while significantly improving transmission efficiency by eliminating unnecessary padding bytes
Solution Approach 2:
The patent introduces modified delimiters and framing mechanisms as intermediaries to replace the traditional padding-based synchronization method. These intermediaries provide packet boundary information without requiring padding bytes, enabling efficient variable-length data transmission while maintaining simple receiver operation through automated parsing of the modified frame structure
Data Source
AI summary
Techniques are provided to allow for efficient data packing under certain coding schemes, e.g., when an enhanced 64/66 encoding scheme is employed. The traditional 64/66 encoding scheme uses idle bytes to pad packets to obtain a packet of fixed size, thereby adding idle overhead to transmitted packets. Accordingly, the techniques eliminate padding bytes and provide for receiving packets by way of a first data link at forwarding device. The packets are transmitted using a scheme that pads the packets to achieve a predetermined packet length. The padding is removed from the received packets to obtain unpadded packets. Data segments of the unpadded packets are concatenated for forwarding in a continuous data stream with a packet delimiter separating each of the unpadded packets. The continuous data stream is encoded using enhanced physical coding sub layer for forwarding over a second data link.