Service Flow Packet Processing Update Mechanism
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Solution Overview
Problem
In current network systems, service flows often result in network resource waste due to the need for each packet to be processed by multiple service function nodes, even if it comes from a trusted user, as there is no mechanism to adjust the manner of processing based on previous packet processing information.
Innovation Solution
A method and apparatus that allow a control node to obtain flow identifier and indication information from an SF node, determining the manner of processing subsequent packets without forwarding them along the initial service flow chain, enabling the processing node to adjust its actions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each packet of service flow is forwarded through the complete service function chain for processing, then service security and quality are ensured, but network resource waste increases due to redundant processing of trusted user packets
Solution Approach 1:
The system performs preliminary processing of the first packet through the complete service function chain to determine indication information (whether subsequent packets are from trusted users). This preliminary action enables subsequent packets to skip redundant processing, resolving the contradiction between ensuring service security and reducing network resource waste.
Solution Approach 2:
The service function node sends indication information back to the control node based on the processing result of the first packet. This feedback mechanism allows the control node to adjust the forwarding manner of subsequent packets, enabling trusted user packets to skip certain service function nodes while maintaining security for untrusted users.
2Stability of the object's composition
If subsequent packets are processed using the same service function chain as the first packet, then processing consistency is maintained, but processing efficiency decreases due to redundant operations on trusted user packets
Solution Approach 1:
The system dynamically adjusts the processing manner of subsequent packets based on the indication information obtained from processing the first packet. For trusted user packets, the system skips certain service function nodes; for untrusted packets, the complete chain is used. This dynamic adjustment maintains processing consistency for security while improving overall processing efficiency.
3Reliability
If all packets are forwarded along the initial service flow chain, then service processing completeness is ensured, but network traffic optimization is prevented due to unnecessary forwarding of trusted user packets
Solution Approach 1:
Based on the indication information from the first packet processing, the system enables subsequent packets from trusted users to skip certain service function nodes in the chain. This skipping mechanism maintains service processing completeness for necessary functions while optimizing network traffic by eliminating redundant forwarding operations.
Data Source
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AI summary
This application discloses a method and an apparatus for updating a manner of processing a packet of a service flow, which can adjust a manner of processing a service flow according to a result of processing a packet of the service flow by an SF node. The method includes: forwarding a first packet of the service flow by using a first service function chain SFC; obtaining, by a control node, a flow identifier and indication information from a service function SF node of the first SFC, where the indication information is used to indicate a manner of processing a second packet of the service flow, the flow identifier is used to identify the service flow, and the second packet reaches a processing node later than the first packet; obtaining, by the control node according to the indication information, the manner of processing the second packet, where the manner of processing the second packet does not include forwarding the second packet along the first SFC; and sending, by the control node, the flow identifier and the manner of processing the second packet to the processing node.