Service Forwarding via IP-Tunnel Mapping
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Solution Overview
Problem
The strong coupling between transport VLAN and wireless VLAN in network systems leads to a heavy coordination workload and complex network adjustments, making service distribution and forwarding inefficient.
Innovation Solution
A service forwarding method that establishes a mapping relationship between the IP address of a base station and the identifier of a transport tunnel using uplink packets, allowing for independent VLAN-free service packet transmission, thereby reducing coordination workload and facilitating network adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If service distribution and forwarding are implemented based on VLAN, then service distribution and forwarding can be achieved, but strong coupling between transport VLAN and wireless VLAN causes heavy coordination workload and complicated network adjustment
Solution Approach 1:
The patent segments the VLAN-based service distribution mechanism into two independent parts: transport VLAN handling and wireless VLAN handling. By introducing IP address-based forwarding as a separate mechanism, the system decouples the transport VLAN from wireless VLAN configuration, allowing each to be managed independently without requiring coordinated configuration between different devices.
Solution Approach 2:
The patent introduces IP address as an intermediary element between the transport layer and wireless layer. Instead of directly coupling VLAN identifiers across layers, the system uses IP address mapping to establish correspondence between transport tunnel and wireless interface, serving as a mediator that eliminates direct VLAN coupling while maintaining service forwarding functionality.
2Productivity
If transport VLAN and wireless VLAN are jointly planned, then service distribution can be implemented, but coordinated configuration is required between different devices causing heavy coordination workload
Solution Approach 1:
The patent segments the configuration process into independent transport-side and wireless-side operations. The transport VLAN configuration is handled separately from wireless VLAN configuration, eliminating the need for coordinated configuration between different devices and reducing coordination time while maintaining service distribution efficiency.
Solution Approach 2:
The system enables self-service configuration where each device independently configures its own VLAN parameters without requiring coordination with other devices. The IP address-based forwarding mechanism automatically establishes mappings locally, allowing devices to operate autonomously and eliminating time-consuming coordination processes.
3Adaptability or versatility
If VLAN-based forwarding is used, then service distribution and forwarding can be achieved, but network adjustment becomes complicated
Solution Approach 1:
The patent introduces dynamic IP address-based forwarding that adapts to network changes more easily than static VLAN-based forwarding. The system can dynamically establish and modify IP-to-transport-tunnel mappings without requiring complex VLAN reconfiguration, enhancing network adaptability while simplifying adjustment operations.
Solution Approach 2:
The patent changes the key parameter from VLAN identifier-based forwarding to IP address-based forwarding. This parameter change allows the system to maintain service distribution functionality while enabling simpler network adjustments, as IP address configurations are more flexible and easier to modify compared to VLAN configurations.
Data Source
AI summary
Embodiments of the present invention provide a service forwarding method and device. The method includes receiving an uplink packet of a base station that is sent by a user-end provider edge (UPE) device over a transport tunnel. The uplink packet carries an Internet Protocol (IP) address of the base station and an identifier of the transport tunnel. The method further includes establishing a mapping relationship between the IP address of the base station and the identifier of the transport tunnel according to the uplink packet, and sending a downlink service packet to the UPE device over the transport tunnel according to the mapping relationship. A destination IP address of the downlink service packet is the IP address of the base station.