Network Control Device Virtual Tunnel Endpoint Management
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Solution Overview
Problem
Conventional communication systems involving tunnel connections between user terminals and service providers have complex network configurations, leading to higher failure and operation risks due to increased functions related to path control and authentication.
Innovation Solution
A network control device is used to set up a virtual network on the carrier network, establishing virtual tunnel end points between user terminals and service providers, reducing the complexity of path control and implementing user authentication through a simpler network configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tunnel connection schemes with multiple functions (path control, authentication) are implemented, then communication reliability is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The patent segments the network control functions by introducing a dedicated network control device that separates path control (tunnel establishment) from authentication (PPPoE session management). This segmentation allows each function to be independently optimized and managed, reducing overall system complexity while maintaining reliability through specialized function handling.
Solution Approach 2:
The network control device acts as an intermediary between user terminals and service providers, centralizing tunnel management functions. This intermediary approach simplifies the network configuration by providing a single point of control for virtual tunnel endpoint (VTEP) management, rather than requiring distributed control across multiple network elements.
2Reliability
If PPPoE session management and user authentication functions are added to achieve safety, then communication security is improved, but device complexity increases
Solution Approach 1:
The patent merges tunnel establishment and user authentication functions into a single network control device. By combining these functions that were previously distributed across different network elements, the system reduces operational complexity while maintaining security through centralized management of both tunnel endpoints and PPPoE sessions.
3Reliability
If virtual tunnel endpoints are set for each user terminal and service provider, then communication reliability is improved, but path control complexity increases
Solution Approach 1:
The network control device provides universal tunnel management capabilities that can handle multiple user terminals and service providers through a single standardized interface. This multi-functionality approach allows the system to manage numerous VTEP pairs without proportionally increasing complexity, as the same core mechanisms are reused across different connections.
Data Source
AI summary
A tunnel connection is enabled between a user terminal and a service provider using a simpler network configuration.A communication system 10 includes a user terminal 20, a service provider 30, a carrier network 40 that connects the user terminal 20 and the service provider 30 to each other, and a network control device 50 that controls the carrier network 40. The network control device 50 sets respective virtual tunnel end points (VTEPs) for a POI terminal 46 that is on the carrier network 40 and that is connected to the service provider 30 and for the user terminal 20, and sets a virtual tunnel between the virtual tunnel end points. The user terminal 20 communicates with the service provider 30 via the virtual tunnel.