Centralized CMC Controller for Multi-OLT Management
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Solution Overview
Problem
In current DOCSIS-based cable networks, the management of Cable Media Converters (CMCs) is resource-intensive due to the need for multiple CMC controllers, each integrated with a single OLT, leading to hardware waste and complexity in communication protocols between different vendor devices.
Innovation Solution
A centralized CMC controller manages multiple OLTs by using a unique identifier for each CMC, allowing configuration files to be forwarded to the corresponding OLT, thereby enabling device sharing and reducing network hardware costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each OLT integrates a dedicated CMC controller, then the management of CMCs is reliable and straightforward, but network hardware costs increase and device sharing becomes impossible
Solution Approach 1:
The CMC controller is designed to manage multiple OLTs simultaneously, making it a universal device that performs the same management function across different OLTs. The controller receives CMC identifiers from multiple OLTs, maintains correspondence relationships between CMCs and OLTs, and forwards configuration files to the appropriate OLTs, thereby enabling one controller to serve multiple OLTs without compromising management reliability
Solution Approach 2:
The CMC controller acts as an intermediary between CMCs and multiple OLTs. It receives configuration file information and CMC identifiers from OLTs, processes the correspondence relationships, and forwards the configuration files to the correct OLTs. This intermediary role enables centralized management while maintaining the reliability of communication between CMCs and OLTs
2Adaptability or versatility
If multiple CMC controllers are deployed for different OLTs, then each OLT has dedicated management capability, but network hardware costs increase
Solution Approach 1:
The CMC controller is designed with multi-functionality to manage multiple OLTs simultaneously. It maintains a correspondence relationship database that maps CMC identifiers to specific OLTs, enabling the single controller to adaptively route configuration files to the appropriate OLTs based on the CMC identifier received, thereby providing versatile management capability without requiring multiple controllers
3Quantity of substance
If a centralized CMC controller manages multiple OLTs, then device sharing is enabled and hardware costs are reduced, but the complexity of managing correspondence relationships increases
Solution Approach 1:
The CMC controller automatically maintains the correspondence relationship between CMCs and OLTs through self-service mechanisms. When receiving packets from OLTs, the controller automatically extracts CMC identifiers, stores the correspondence relationships in its database, and uses this information to automatically route configuration files to the correct OLTs without requiring manual configuration or complex external management
Data Source
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AI summary
The present invention provides a cable media converter CMC management method. The method includes: receiving, by a CMC controller by using a management channel, a second message packet sent by a CMC, where the second message packet includes an identifier of the CMC and configuration file information of a CM, and the identifier of the CMC is used to uniquely identify the CMC; and determining, by the CMC controller based on a locally saved correspondence between an OLT and a CMC, an OLT corresponding to the CMC identified by the identifier in the second message packet, and sending the configuration file information in the second message packet to the determined OLT. A CMC controller and a system are also provided. According to the present invention, CMCs corresponding to a plurality of OLTs can be managed by using one CMC controller, thereby implementing device sharing and reducing network hardware costs.