Service Node Protocol Message Synchronization via Shared IP
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Solution Overview
Problem
Current user backup methods in broadband networks fail to completely synchronize user-related protocol messages between service nodes, leading to configuration complexity and error risks, especially when switching between active and standby backup groups.
Innovation Solution
A service node method that receives user-related protocol messages, judges the state of the corresponding backup group, and determines whether to send the message to an active or standby service node, encapsulating the message through a service backup protocol for accurate synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate local IP address is set for each backup group to correctly send protocol messages, then protocol message synchronization is improved, but device complexity and configuration complexity are aggravated
Solution Approach 1:
The service node is designed to handle multiple backup groups using a single shared local IP address. The node universally processes protocol messages for all backup groups through one address, eliminating the need for separate IP addresses for each backup group while maintaining correct message routing and synchronization
Solution Approach 2:
A message identification and routing mechanism acts as an intermediary between the shared IP address and specific backup groups. When protocol messages arrive at the shared IP address, the system identifies the target backup group through message content analysis and routes them appropriately, avoiding the need for multiple dedicated IP addresses
2Device complexity
If multiple backup groups share the same local IP address, then device complexity is reduced, but protocol message synchronization deteriorates
Solution Approach 1:
While using a single shared IP address at the network interface level, the system implements local quality differentiation by identifying and processing messages for different backup groups according to their specific characteristics. Each backup group receives appropriate protocol messages through content-based routing within the shared address framework
Solution Approach 2:
The message processing function is segmented into identification and routing stages. First, messages are received at the shared IP address, then segmented and directed to the appropriate backup group based on message content analysis, ensuring correct synchronization without requiring separate IP addresses
3Ease of operation
If protocol messages are sent to the service node with active backup group state, then message routing is simplified, but message synchronization completeness deteriorates when backup groups switch states
Solution Approach 1:
The system implements dynamic state tracking for backup groups, continuously monitoring which group is currently active. This dynamic information is used to adaptively route protocol messages to the correct service node, ensuring message synchronization completeness even when backup group states switch between active and standby
Solution Approach 2:
A feedback mechanism tracks the active/standby states of backup groups and provides this information to the message routing logic. This feedback ensures that protocol messages are always routed to the service node with the active backup group state, maintaining synchronization completeness while keeping routing logic adaptable to state changes
Data Source
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AI summary
A method for synchronizing user protocol messages between service nodes includes: when receiving a user-related protocol message, a service node judging whether a state of a backup group to which a user belongs corresponding to the protocol message is active or standby on the service node, and according to a type of the protocol message, determining whether to send the protocol message to another service node on which the state of the backup group is standby or active; and when determining to send the protocol message, the service node encapsulating the protocol message through a service backup protocol and sending the protocol message to the other service node. A service node includes: a message receiving module, a state judging module and a message sending module.