Network Relay Apparatus Targeted Flooding Based on Port Attributes
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Solution Overview
Problem
Conventional network relay apparatuses experience excessive bandwidth load and security concerns due to unnecessary frame flooding in network configurations, as they send frames to all ports except the receiving port, including devices that do not require them.
Innovation Solution
A network relay apparatus with a frame processor that performs targeted flooding based on the attribute of the transmit port, using a port attribute storage and flooding target storage to determine and set specific flooding targets, reducing unnecessary bandwidth load and enhancing security by excluding devices that do not require the frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flooding operation sets all ports except receiving port as flooding target, then frame relay reliability is improved, but bandwidth load increases and security deteriorates
Solution Approach 1:
The patent applies local quality by differentiating flooding behavior based on the specific characteristics of each port. Instead of uniform flooding to all ports, the system determines flooding targets individually for each port based on its attribute (ring port or non-ring port), thereby reducing unnecessary bandwidth consumption while maintaining reliable frame relay where needed.
Solution Approach 2:
The patent segments the flooding operation into two distinct types: ring port flooding and non-ring port flooding. Each segment has different flooding targets and behaviors, allowing the system to optimize bandwidth usage by applying appropriate flooding strategies to different network segments rather than applying a one-size-fits-all approach.
2Reliability
If conventional flooding operation sends frames to all ports, then frame relay reliability is improved, but security deteriorates due to unnecessary frame transmission to devices
Solution Approach 1:
The patent implements local quality by tailoring flooding behavior to the specific port attributes. Ring ports receive different flooding treatment compared to non-ring ports, ensuring that frames are only transmitted to devices that actually require them, thereby enhancing security by preventing unnecessary frame transmission to unauthorized or unrelated devices.
Solution Approach 2:
The patent applies partial action by performing flooding only to the extent necessary for each port type. Instead of excessive flooding to all ports, the system performs partial flooding targeted at specific ports (ring ports or non-ring ports) based on their attributes, thereby reducing security risks associated with over-broadcasting to devices that do not need the frames.
3Reliability
If network relay apparatus uses ring protocol for redundancy, then network reliability is improved, but flooding load on frequency band increases
Solution Approach 1:
The patent segments the ring network ports into two categories: ring ports and non-ring ports. This segmentation allows the system to apply different flooding strategies to each segment, reducing the overall flooding load on the frequency band while maintaining the redundancy benefits of the ring protocol by ensuring frames are relayed appropriately through ring ports when needed.
Solution Approach 2:
The patent applies local quality by optimizing flooding behavior for each port type within the ring network. Ring ports receive flooding treatment appropriate for maintaining ring redundancy, while non-ring ports follow different flooding patterns, thereby reducing unnecessary frequency band load while preserving network reliability through targeted ring protocol operation.
Data Source
AI summary
The network relay apparatus is provided. The network relay apparatus includes: multiple ports, each being provided to send and receive a frame to and from one of multiple external devices; and a frame processor configured to perform flooding, in order to relay a received frame that is received via one of the multiple ports as a receiving port, with a preset flooding target according to an attribute of a transmit port that sends the received frame.