SRv6 Access Control Message Forwarding for Cross-Domain Traffic Steering
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Solution Overview
Problem
Existing wired broadband access networks struggle to efficiently transmit access control messages and steer traffic intelligently, especially when the user plane and control plane are deployed separately across different network domains.
Innovation Solution
The implementation of a data forwarding method using segment routing over IPv6 (SRv6) that encapsulates meta arrays and original access control messages into access control messages, allowing for intelligent traffic steering and intra-domain and cross-domain message transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If VXLAN transmission scheme is used for access control message transmission, then Layer 2 transmission within the same network domain is achieved, but intelligent traffic steering of access control message data in cross-domain scenarios cannot be achieved
Solution Approach 1:
The patent segments the access control message into two parts: the original access control message and a meta array containing path identification information. This segmentation allows the message to be transmitted reliably while carrying routing information for intelligent traffic steering in cross-domain scenarios
Solution Approach 2:
The patent embeds the meta array containing path identification information within the access control message itself. This nesting structure allows the original message to maintain its integrity for reliable transmission while containing embedded routing instructions for cross-domain traffic steering
2Reliability
If GTP-U transmission scheme is used for access control message transmission, then message transmission between user plane and control plane is achieved, but intelligent traffic steering of access control message data cannot be supported
Solution Approach 1:
The patent segments the access control message into the original message and a meta array, where the meta array contains path identification information. This segmentation enables GTP-U transmission to maintain reliable message delivery while adding intelligent traffic steering capability through the embedded path information
Solution Approach 2:
The meta array acts as an intermediary element that bridges the GTP-U transmission mechanism and the intelligent traffic steering requirement. It carries path identification information that enables traffic steering without interfering with the underlying GTP-U transmission reliability
3Device complexity
If user and control plane are integrated in the same network device, then simple message transmission is achieved, but cloud network architecture requirements and new service delivery cannot be satisfied
Solution Approach 1:
The patent segments the broadband access device into separate user plane and control plane entities, with the meta array providing the connection mechanism. This segmentation satisfies cloud network architecture requirements while maintaining effective message transmission between separated planes
Solution Approach 2:
The meta array with path identification information serves as an intermediary that enables communication between the separated user plane and control plane, allowing cloud-native deployment while maintaining the coordination necessary for access control message transmission
Data Source
AI summary
Provided are a data forwarding method and apparatus, a device, and a storage medium. The data forwarding method includes: in response to receiving a user access request, encapsulating a meta array of a first communication node and an original access control message to obtain a first access control message; and forwarding the first access control message to a second communication node according to a pre-orchestrated path.