Distributed Linked List Memory for Network Devices
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Solution Overview
Problem
Current network devices face challenges in managing high data capacity and speed without increasing the number of access ports or clock speed, which leads to higher costs and power consumption.
Innovation Solution
A memory system for network devices that implements a distributed-linked list architecture, using a link memory, free-entry manager, and context manager to interconnect data elements in main memory without direct relationships, allowing for the use of single-port memory and lower operating frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of access ports of memory is increased to meet high data capacity demands, then the data handling capability is improved, but the cost and device complexity significantly increase
Solution Approach 1:
The memory system is segmented into multiple independent memory banks (first bank, second bank, third bank, fourth bank) that can be accessed independently. This segmentation allows the system to handle multiple data requests simultaneously using fewer access ports per bank, thereby maintaining high data handling capability while reducing overall device complexity and cost.
2Speed
If the clock speed of memory is increased to meet high data rate demands, then the data transfer rate is improved, but the power consumption significantly increases
Solution Approach 1:
The memory system divides data storage into multiple banks that can operate independently at lower clock speeds. By parallelizing access across banks rather than relying on higher clock speeds in a single bank, the system achieves high data transfer rates while reducing power consumption associated with high-frequency operation.
Solution Approach 2:
The system dynamically manages access to different memory banks based on data request patterns. The context manager and free-entry manager dynamically allocate and deallocate bank resources, optimizing the use of available memory banks to maintain high data transfer rates without requiring all banks to operate at maximum clock speeds continuously, thereby reducing overall power consumption.
3Productivity
If the number of access ports and clock speed are increased to meet network demands, then the data handling performance is improved, but the cost significantly increases
Solution Approach 1:
The memory system uses segmentation into multiple banks with fewer access ports each, allowing the use of more economical memory components rather than expensive high-port-count memory. This approach maintains high data handling performance through parallel access while significantly reducing the cost of memory components and overall system manufacturing.
4Quantity of substance
If the number of access ports is increased to handle high capacity networks, then the data capacity handling is improved, but the power budget required significantly increases
Solution Approach 1:
The system segments data capacity across multiple memory banks that can be accessed in parallel. This allows the system to handle large data capacities without requiring a single high-port-count memory device, thereby reducing the power budget required while maintaining the ability to handle high-capacity network data.
Data Source
AI summary
A memory system for a network device is described. The memory system includes a main memory configured to store one or more data elements. Further, the memory system includes a parent distributed-linked list configured to store linked-list metadata. And, the memory system includes a child distributed-linked list configured to maintain list metadata to interconnect the one or more data elements stored in the main memory to generate at least a first snapshot, said linked-list metadata references the snapshot.