DSL Slave Block IGMP Proxy Multicast Segmentation
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Solution Overview
Problem
The existing DSL access systems face inefficiencies and bandwidth waste due to the master block handling all multicast operations, leading to a heavy burden and excessive bandwidth consumption when supporting multiple ADSL users for multicast services.
Innovation Solution
Implementing a slave block that supports Internet Group Management Protocol (IGMP) proxy or IGMP snooping, allowing it to independently perform multicast functions, with configuration data synchronization between the master and slave blocks, and using separate channels for unicast and multicast data transfer to reduce bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the master block handles all multicast operations, then centralized control is achieved, but bandwidth consumption increases and operational burden increases
Solution Approach 1:
The patent divides the multicast handling function between master block and slave block. The slave block independently performs multicast data forwarding based on IGMP proxy or snooping, while the master block maintains centralized configuration management. This segmentation reduces the bandwidth burden on the master block while preserving centralized control capabilities.
2Ease of operation
If the master block handles all multicast operations, then centralized management is achieved, but operational efficiency decreases
Solution Approach 1:
The patent segments multicast operations into configuration management (master block) and data forwarding (slave block). The slave block independently forwards multicast data to users without requiring master block intervention for each operation, significantly improving operational efficiency while the master block maintains centralized configuration management.
Solution Approach 2:
The slave block is empowered to independently perform multicast data forwarding operations using IGMP proxy or snooping mechanisms. It serves itself by autonomously managing multicast data flow to connected users without requiring continuous master block processing, thereby improving operational efficiency.
3Loss of energy
If the slave block independently performs multicast functions, then bandwidth usage is reduced, but device complexity increases
Solution Approach 1:
The patent introduces IGMP proxy or IGMP snooping as intermediary mechanisms in the slave block. These standardized protocols enable the slave block to independently handle multicast functions without requiring complex custom implementations, thus reducing the increase in device complexity while achieving bandwidth savings.
Data Source
AI summary
Embodiments of the present invention provide a method and a system for implementing multicast using a slave block in DSL access technique. Several slave blocks are cascaded with a master block accessed to the DSL. The master block and slave block are respectively connected with DSL users via RTUs, and access an uplink via a network interface of the master block. The slave block is configured to support the IGMP proxy or the IGMP snooping so as to implement multicast function independently. This invention overcomes the shortcomings including the heavy burden on the master block, low efficiency and serious waste in bandwidth resulting from the fact that the operation of the slave block multicast member is implemented in the master block, thus increasing the efficiency of multicast and saving bandwidth of the master block.