BFD to Y.1731 Interworking Function for MPLS Fault Management
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Solution Overview
Problem
The integration of proprietary Y.1731 OAM deployments with standardized MPLS networks poses challenges in rationalizing and harmonizing operations, particularly in fault management and interworking between different domains.
Innovation Solution
A method and system for interworking between BFD and Y.1731 protocols in MPLS networks through a state machine-based interface, allowing for the transmission and processing of alarm indications across domains, ensuring seamless communication and fault detection across disparate network domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proprietary Y.1731 OAM is deployed in MPLS networks, then fault management capabilities are provided, but network harmonization and standardization are compromised
Solution Approach 1:
The patent introduces an Interworking Function (IWF) as an intermediary component that sits between BFD-based MPLS networks and Y.1731-based networks. The IWF translates and adapts OAM messages between the two different protocols, allowing them to interwork seamlessly. This mediator enables fault management capabilities to be provided while maintaining network harmonization through standardization.
Solution Approach 2:
The IWF is designed to perform multiple functions: it processes BFD OAM messages, translates them to Y.1731 format, and vice versa. This multi-functionality allows a single component to handle both proprietary and standardized protocols, enabling fault management capabilities across heterogeneous networks while maintaining harmonization.
2Reliability
If BFD and Y.1731 protocols are integrated, then fault detection coverage is enhanced, but protocol complexity increases
Solution Approach 1:
The patent segments the OAM processing functionality by introducing separate IWF components for different protocol types. Each IWF handles specific protocol translation and processing tasks independently, which simplifies the overall system architecture despite the enhanced fault detection coverage provided by integrating multiple protocols.
Data Source
AI summary
Systems, methods, and apparatuses for BFD to Y.1731 internetworking are described. In one embodiment, a method of processing defect conditions in a maintenance endpoint (MEP) of a first domain, the MEP a component of a bidirectional forwarding detection (BFD) to Y.1731 interworking interface (IWF) in a multi-protocol label switching (MPLS) network is described.