Separate VLANs for Stream Message Processing
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Solution Overview
Problem
In telecommunication networks, processing upstream and downstream multicast stream messages increases the processing load and delays, reducing network switching performance due to the need for nodes to determine and process message types.
Innovation Solution
Implementing separate Virtual Local Area Networks (VLANs) for upstream and downstream messages, where upstream messages are transmitted on a different VLAN than downstream messages, allowing nodes to identify message types without processing, thereby reducing processing load and delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate VLANs are implemented for upstream and downstream messages, then network switching performance is improved and processing delay is reduced, but device complexity increases
Solution Approach 1:
The patent divides the network communication into separate upstream and downstream VLANs, segmenting the message flow directions. This segmentation allows nodes to identify message types through VLAN tags without processing message contents, improving switching performance while managing complexity through structured separation.
Solution Approach 2:
The VLAN tags act as intermediaries that carry directional information without requiring nodes to process the actual message contents. Nodes use the VLAN tag as a mediator to determine forwarding behavior, reducing processing load while maintaining clear upstream/downstream differentiation.
2Measurement precision
If nodes process message types to determine forwarding behavior, then message routing accuracy is improved, but processing load and power consumption increase
Solution Approach 1:
The patent extracts the directional information from the message content itself and places it in the VLAN tag. Nodes only need to read the VLAN tag to determine message direction and forwarding behavior, taking out the essential routing information from complex message processing and significantly reducing power consumption.
Solution Approach 2:
The patent changes the parameter used for message identification from content-based analysis to VLAN tag-based identification. This parameter change transforms the identification process from high-power content processing to low-power tag reading, maintaining accuracy while reducing energy consumption.
3Reliability
If nodes process upstream messages to determine message types, then forwarding accuracy is improved, but processing delay increases
Solution Approach 1:
The patent performs preliminary action by tagging messages with upstream/downstream VLAN identifiers before transmission. Nodes encounter the VLAN tag immediately upon receiving the message, eliminating the need for subsequent processing to determine message type. This preliminary tagging ensures forwarding accuracy while minimizing delay.
Data Source
AI summary
Methods, systems, and apparatus for processing stream messages are disclosed. In one aspect, a downstream message formatted according to an asymmetric communication protocol is received over a downstream Virtual Local Area Network (VLAN). An upstream message is generated in response to receiving the downstream message. The downstream message is transmitted on the downstream VLAN. The upstream message is transmitted on an upstream VLAN that is different than the downstream multicast VLAN.