MoCA L2ME Software Upgrade via Packet Segmentation
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Solution Overview
Problem
Current MoCA networks lack the ability to perform software upgrades on layer-2 devices, such as L2 bridges, due to their closed network architecture, which prevents user modification and management functions like configuration management, status monitoring, and software upgrades.
Innovation Solution
The use of Layer-2 Management Entity (L2ME) messages facilitates software upgrades in MoCA networks by enabling remote initiation from a gateway device, breaking the software image into packets with sequence numbers and CRC information, and transmitting these packets through an L2ME message channel to client devices for storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MoCA networks use a closed network architecture for layer-2 devices, then network stability and security are improved, but the ability to perform software upgrades and management functions is lost
Solution Approach 1:
The patent introduces L2ME messages as an intermediary mechanism that enables software upgrade functionality in MoCA networks without breaking the closed network architecture. The L2ME messages act as a standardized interface that allows higher-layer management functions to communicate with layer-2 devices through the existing MoCA protocol, thus maintaining network stability while enabling software upgrades.
2Adaptability or versatility
If MoCA networks allow user modification and management functions, then software upgrade capability is improved, but network security and stability may be compromised
Solution Approach 1:
The patent segments the network management functionality by introducing a standardized L2ME message layer that separates management functions from the core layer-2 operations. This segmentation allows software upgrade capabilities to be added without directly modifying the core MoCA protocol, thus maintaining network stability while enabling management functions.
3Device complexity
If software images are transmitted as single large files, then transmission simplicity is improved, but network efficiency and reliability are reduced
Solution Approach 1:
The patent divides software images into multiple smaller packets before transmission through the MoCA network. Each packet is individually transmitted and acknowledged, improving network efficiency by enabling better error handling, retransmission of only failed packets, and more effective utilization of network bandwidth compared to transmitting a single large file.
Data Source
AI summary
Principles, apparatuses, systems, circuits, methods, and computer program products for performing a software upgrade in a MoCA network includes receiving an image of a software upgrade at a server and sending the image in the MoCA network using an L2ME message channel to a client that is enabled to receive the image and store the image in a client memory. The image may be broken up into packets, and a sequence number may be assigned to each packet to assist the client in assembling them. CRC information may also be appended to the packets to enable the client to verify their contents.