Dynamic Overlay Tunnel Signaling for Global Backbone Networks
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Solution Overview
Problem
The construction of a global backbone network is hindered by complex configuration, heavy workload, and low data-plane encapsulation efficiency due to statically creating overlay tunnels or point-to-point virtual connections, and advertising information using IGP or BGP.
Innovation Solution
A communication method that automatically generates and dynamically enables protocols like IGP based on logical interfaces, allowing communication apparatuses to exchange identification and overlay tunnel information without manual configuration, enabling distributed calculation of overlay routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If overlay tunnels are statically created step by step or point-to-point virtual connections are statically configured, then virtual connection information can be advertised using IGP or BGP, but configuration becomes complex and workload increases
Solution Approach 1:
The communication apparatus automatically creates overlay tunnels and enables protocols based on logical interfaces without manual configuration. The system self-configures by automatically creating overlay tunnels when logical interfaces are enabled, and automatically enabling protocols like IGP or BGP on these tunnels, eliminating the need for step-by-step static configuration and reducing workload significantly
Solution Approach 2:
The system pre-configures logical interfaces with associated overlay tunnel information before actual communication needs arise. When a logical interface is enabled, the overlay tunnel is already created and protocol is already enabled, so the tunnel is immediately available for use without requiring preliminary manual configuration steps
2Reliability
If overlay tunnels are statically created or virtual connections are statically configured, then virtual connection information can be advertised, but data-plane encapsulation efficiency decreases
Solution Approach 1:
The system dynamically creates and enables overlay tunnels based on actual communication needs rather than static pre-configuration. When a logical interface is enabled, the associated overlay tunnel is dynamically created and the protocol is dynamically enabled, allowing the system to adapt to changing network conditions and optimize encapsulation efficiency in real-time
3Reliability
If manual configuration is performed for overlay tunnel creation and protocol enabling, then virtual connections can be established, but workload increases
Solution Approach 1:
The communication apparatus performs self-configuration by automatically creating overlay tunnels and enabling protocols when logical interfaces are enabled. The system eliminates manual configuration requirements by automatically associating overlay tunnel information with logical interfaces and enabling the necessary protocols, significantly reducing operational workload
Data Source
AI summary
This application provides a communication method. The communication method performed by a first communication apparatus. The communication method includes: obtaining first overlay tunnel information, where the first overlay tunnel information is associated with a first overlay tunnel created by the first communication apparatus; and sending a first protocol packet to a second communication apparatus, where the first protocol packet includes identification information of the first communication apparatus and the first overlay tunnel information. In this application, the first communication apparatus transfers the identification information of the first communication apparatus and the first overlay tunnel information to the second communication apparatus via the protocol packet.