Passive Optical Network Service Management During OMCI VNF Disconnection
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Solution Overview
Problem
The disconnection between the OMCI VNF and OLT in passive optical fiber networks leads to service failures and interference with normal ONU operations during reconnection synchronization.
Innovation Solution
A method and device for service management that maintains communication with the OLT, acquires OMCI frame data, and performs service management based on network connection status and ONU information, temporarily taking over OMCI VNF tasks during disconnection and synchronizing with OMCI VNF upon reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If OMCI VNF performs synchronization with ONU service information after reconnection, then the service information is updated, but normal ONU service is interfered with and service failure occurs
Solution Approach 1:
The patent applies preliminary action by performing synchronization before reconnection occurs. The OLT pre-synchronizes service information with the OMCI VNF before the actual reconnection happens, so that when reconnection occurs, the synchronization is already complete and no additional synchronization interference affects ONU service. This resolves the contradiction by updating service information in advance without causing service disruption during reconnection.
2Adaptability or versatility
If remote connection between OMCI VNF and OLT is used, then network function virtualization is achieved, but connection disconnection occurs leading to service failure
Solution Approach 1:
The patent applies beforehand cushioning by establishing a local cache mechanism at the OLT that stores service information locally before remote connection issues occur. When the remote connection between OMCI VNF and OLT disconnects, the OLT can continue to provide service using the cached information, cushioning against the connection instability. This allows the system to maintain virtualization capabilities while protecting against connection disconnection failures.
3Loss of information
If service synchronization is performed after reconnection, then service information is updated, but service failure occurs during synchronization
Solution Approach 1:
The patent performs service information synchronization as a preliminary action before reconnection occurs. The OLT updates its service information cache in advance through pre-synchronization with the OMCI VNF, ensuring information is current before any disconnection happens. This eliminates the need for post-reconnection synchronization that would cause service failure, as the information is already updated beforehand.
Data Source
AI summary
A service management method and apparatus for a passive optical network, an optical line terminal and a medium are disclosed. The method may include, maintaining communication with the OLT; acquiring optical network unit management control interface (OMCI) frame data transferred via the OLT; acquiring service information of the ONU according to the OMCI frame data; and performing the service management to the passive optical fiber network according to a network connection status between the OLT and the OMCI VNF, and service information of the ONU.