Network Virtualization Routing System Service Connectivity
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Solution Overview
Problem
Network virtualization routing systems face complexity and poor connectivity due to the need for complementary adaptation for each type of service, such as unicast IP, L2VPN, and L3VPN, which complicates processing and reduces efficiency.
Innovation Solution
The method involves creating virtualized remote logical interfaces to identify service types and generate virtual link forwarding entries between core aggregation nodes and remote access nodes, establishing a virtual link to support various services efficiently and with high quality by separating control and forwarding planes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complementary adaptation is implemented for each service type (unicast IP, L2VPN, L3VPN) in the network virtualization routing system, then service processing capability is improved, but device complexity and configuration complexity increase significantly
Solution Approach 1:
The patent introduces a universal encapsulation mechanism where service packets of different types (unicast IP, L2VPN, L3VPN) are encapsulated with a common service identifier. This allows a single forwarding table to handle multiple service types through unified processing, eliminating the need for separate handling mechanisms for each service type and significantly reducing configuration complexity.
Solution Approach 2:
The service identifier acts as an intermediary between the service packets and the forwarding table. By introducing this intermediate element, the system can differentiate service types without requiring complex service-specific processing logic, simplifying the overall system architecture while maintaining the ability to handle diverse service types.
2Reliability
If separate service channels are set up for different service types, then service connectivity is improved, but processing complexity increases
Solution Approach 1:
The patent merges multiple service channels into a single unified forwarding channel. By using service identifiers to mark packets, the system can maintain logical separation of different service types while physically consolidating them into one forwarding path, reducing processing complexity while preserving service connectivity and reliability.
Solution Approach 2:
A single forwarding table is designed to handle multiple service types simultaneously through the use of service identifiers. This universal forwarding mechanism eliminates the need for multiple dedicated forwarding tables and processing logic for each service type, simplifying the system while maintaining the ability to provide reliable connectivity for all service types.
3Ease of operation
If network virtualization is introduced to simplify network structure, then operation administration and maintenance is improved, but service processing complexity increases due to lack of complementary adaptation
Solution Approach 1:
The patent changes the parameter used for service identification from complex service-type-specific parameters to a simple service identifier. This parameter transformation allows the network virtualization system to maintain its simplifying benefits while efficiently processing different service types through a unified mechanism, avoiding the need for complementary adaptation.
Data Source
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AI summary
Embodiments of the present invention disclose a method, a device, and a routing system for data transmission of network virtualization, which relate to the field of communications, and resolve connectivity of services inside a network virtualization system when a virtual cluster system supports unicast IP, L2VPN, and L3VPN services, so that the software network virtualization system can support various types of services efficiently and with high quality. The method includes: creating, on a control device, a virtualized remote logical interface for an external interface of a remote access node; identifying, by the control device according to a service configured on the virtualized remote logical interface, a service type of the service, and generating virtual link forwarding entries of the remote access node and a core aggregation node; and sending, by the control device, the virtual link forwarding entry to the remote access node and the core aggregation node, so as to set up a virtual link between the core aggregation node and the remote access node. The embodiments of the present invention are applicable to the field of communications technologies.