10GE PHY Mode Selection for LAN and WAN Compatibility
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Solution Overview
Problem
Current 10GE devices can only support either a 10GE LAN port or a 10GE WAN port, limiting their application scope due to differing requirements and configurations for these two environments.
Innovation Solution
A method and apparatus that allow a 10GE device to set its physical layer channel into either a LAN or WAN working mode by controlling a mode selection pin, enabling the same port to support both LAN and WAN services through a configurable clock unit and special PHY chip, allowing for flexible configuration based on application requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a 10GE device is designed to support only one type of port (LAN or WAN), then the device structure can be simplified and manufacturing cost reduced, but the application scope and versatility of the device is severely limited
Solution Approach 1:
The patent implements a universal 10GE device that can function as both LAN port and WAN port through a mode selection mechanism. The device includes a mode selection pin that can be configured to different voltage levels (high or low) to determine whether the device operates in LAN mode or WAN mode. This allows a single device to perform multiple functions and adapt to different network environments, resolving the contradiction between versatility and complexity by using a configurable multi-functional architecture rather than separate dedicated devices for each port type
2Reliability
If separate devices are used for 10GE LAN port and 10GE WAN port, then each device can be optimized for its specific function, but development costs and system complexity increase
Solution Approach 1:
The patent merges the functionality of separate 10GE LAN port devices and 10GE WAN port devices into a single unified device. The unified device contains all necessary components and circuitry to support both LAN and WAN operations, controlled by a mode selection pin that switches between operational modes. This consolidation reduces system complexity and development costs while maintaining the reliability and optimization benefits of dedicated functionality through mode-specific configuration
Data Source
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AI summary
A method and apparatus compatible with a 10GE LAN port and WAN port are disclosed, which are applied to a 10GE device containing a 10GE physical layer channel compatible with a 10GE LAN port working mode and a 10GE WAN port working mode. The method includes: after receiving a mode selection command sent from an upper layer, the 10GE device setting the 10GE physical layer channel into a corresponding working mode according to working mode information carried in the command, and providing a working clock needed when working in this working mode for the channel. The apparatus includes a control unit, a configurable clock unit and a 10GE physical layer channel. After adopting the invention, the 10GE port can connect not only the 10GE LAN service but also the 10GE WAN service, thereby realizing the application of the 10GE device in LAN and WAN, enriching the functions of the port without increasing development costs and expanding the application range of the device.