Interconnection Object for SDH OTN Network Management
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Solution Overview
Problem
The complexity of managing interconnections between SDH and OTH subsystems in network elements increases with the growing demand for bandwidth and functional integration, requiring standardized management interfaces and detailed knowledge of interconnection status, which is often handled explicitly by the operator or through requests to the network element control system.
Innovation Solution
A new managed object, the interconnection object, is introduced to represent all physical interconnections between subsystems, allowing the network management system to request allocation or release of interconnections without detailed physical knowledge, shifting the complexity to the network element control system and encapsulating changes within the interconnection object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the network management system explicitly manages each interconnection between SDH and OTH subsystems, then the allocation and release of interconnections can be controlled, but the management complexity increases significantly
Solution Approach 1:
The patent merges all individual interconnections between SDH and OTH subsystems into a single pooled resource managed by an interconnection manager. Instead of managing each interconnection separately, the system combines them into one unified resource that can be dynamically allocated, thereby reducing management complexity while maintaining control capabilities.
Solution Approach 2:
The interconnection manager acts as an intermediary between the network management system and the physical interconnections. It abstracts the complex details of individual interconnections and presents a simplified interface to the network management system, handling the complexity internally while providing easy-to-use allocation and release functions.
2Reliability
If the network management system requires detailed knowledge of interconnection status, then precise control is achieved, but the operational difficulty increases
Solution Approach 1:
The interconnection manager implements self-service by automatically monitoring and managing the status of all interconnections. It autonomously tracks which interconnections are active, their current state, and their availability, eliminating the need for the network management system to manually query or know detailed interconnection status while maintaining precise control.
Solution Approach 2:
The system implements feedback mechanisms where the interconnection manager continuously monitors interconnection status and provides updated information to the network management system. This automatic feedback loop ensures the network management system has accurate, up-to-date information without requiring detailed knowledge or manual tracking, maintaining reliability while reducing operational difficulty.
Data Source
AI summary
The present invention relates to a control system of a network element (18) capable of handling transmission signals of an optical transport network (16) (OTN) and transmission signals of a synchronous digital transport network (16) (SDH), the network element (18) comprising a first subsystem (28) for handling trans-mission signals of the optical transport network (16), a second subsystem (30) for handling transmission signals of the synchronous digital transport network (16) and a number of dedicated interconnections (40) between the two subsystems (28, 30), wherein the control system comprises a management information base comprising managed objects (54) related to the first subsystem (28), managed objects (52) related to the second subsystem (30) and a further managed object (56) (interconnection object) related to the number of interconnections (40). The invention further relates to a network element comprising the control system and a method for managing the network element.