Pluggable Transceiver Header Rewriting for Layer 3/4 Traffic Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pluggable transceivers lack the capability to facilitate comprehensive analysis of network traffic at higher layers of the OSI model, such as layer 3 and layer 4, without requiring server functionality, which limits their deployment in network devices.
Innovation Solution
A pluggable transceiver that updates network and transport layer headers to enable communication and analysis of network traffic between client and server, allowing for testing and analysis of layer 3 and layer 4 traffic without needing server resources, thus being lightweight and deployable at more network points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If pluggable transceiver performs network traffic analysis at layer 3 and layer 4, then analysis capability is improved, but device complexity increases due to server functionality requirements
Solution Approach 1:
The patent extracts the server functionality from the pluggable transceiver by implementing a lightweight design that only performs necessary packet forwarding and header modification operations. The transceiver extracts and processes only the essential information needed for traffic analysis (source/destination IP addresses and ports) without requiring full server functionality, thereby reducing device complexity while maintaining analysis capability.
Solution Approach 2:
The pluggable transceiver acts as an intermediary device between client network devices and server network devices. It receives packets from clients, modifies the headers to reflect the actual communication path through the transceiver, and forwards packets to servers. This intermediary role enables traffic analysis without requiring the transceiver to have full server functionality, as it simply facilitates packet routing and modification.
2Measurement precision
If pluggable transceiver implements comprehensive network analysis functionality, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent applies partial action by implementing only the necessary functionality for traffic analysis at layer 3 and layer 4. The transceiver performs partial packet processing (header modification and forwarding) rather than complete packet handling. This selective implementation achieves sufficient measurement precision for traffic analysis while avoiding the complexity of implementing all possible network functions.
3Adaptability or versatility
If pluggable transceiver is deployed at more network points, then adaptability is improved, but device complexity increases due to resource requirements
Solution Approach 1:
The patent implements a lightweight pluggable transceiver design that can be deployed at multiple network points without requiring significant resources. The transceiver uses minimal processing capacity and memory, similar to a disposable or low-cost component, enabling widespread deployment across numerous network locations. This lightweight approach allows the transceiver to be inserted into various network devices without imposing heavy resource requirements on the host system.
Data Source
AI summary
A pluggable transceiver receives, from a client, a first message that indicates a first source IP address as being an IP address of a client, a first destination IP address as being an IP address of the pluggable transceiver, a first source port as being a port of the client, and a first destination port as being a port of the pluggable transceiver. The pluggable transceiver updates the first message to indicate the first source IP address as being the IP address of the pluggable transceiver, the first destination IP address as being an IP address of a server, and the first destination port as being a port of the server. The pluggable transceiver sends the updated first message to the server.