Distributed OAM Routing in Optical Network Shelf Processors
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Solution Overview
Problem
As network traffic increases, the processing load on shelf processor cards for operations, administration, and management (OAM) traffic in optical networks becomes significant, leading to a need for improved routing efficiency without increasing design and manufacturing costs.
Innovation Solution
A distributed routing configuration where a master shelf processor card distributes subsets of OAM routing information to tributary cards, enabling each card to execute routing functionality and reduce the processing load on the shelf processor card.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If centralized routing is used where the shelf processor card processes all OAM traffic, then routing control is simplified, but the processing load on the shelf processor card increases significantly
Solution Approach 1:
The patent segments the centralized routing function by distributing routing information to multiple tributary cards. Each tributary card receives a subset of routing information relevant to its specific functions, allowing it to independently route OAM packets without requiring all routing decisions to be processed by the shelf processor card. This segmentation reduces the processing load on the shelf processor card while maintaining routing control.
2Productivity
If the processing capabilities of the shelf processor card are increased to handle more OAM traffic, then routing capacity is improved, but design and manufacturing costs increase
Solution Approach 1:
The patent implements self-service by enabling tributary cards to independently perform routing functions using distributed routing information. Each tributary card can autonomously route OAM packets destined for addresses within its assigned subset without requiring enhanced processing capabilities on the shelf processor card. This self-service approach increases routing capacity without increasing design and manufacturing costs.
3Productivity
If distributed routing is implemented across multiple cards, then processing load on the shelf processor card is reduced, but routing information management becomes more complex
Solution Approach 1:
The patent applies local quality by providing each tributary card with a specific subset of routing information tailored to its local requirements and functions. Rather than distributing all routing information to all cards, each card receives only the routing entries relevant to its operations. This approach reduces the processing load on the shelf processor card while keeping routing information management manageable through targeted distribution.
Data Source
AI summary
A system and method for routing operations, administration, and maintenance traffic for an optical network are described. A subset of a routing information set is transmitted to tributary cards of a network element. The tributary cards route operations, administration, and management traffic based on the subset of the routing information.