Web Filtering Categories Mapped to Differentiated Services Values
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Solution Overview
Problem
Conventional web filtering solutions lack the ability to differentiate between the significance of websites to a network entity, leading to inefficiencies in bandwidth allocation and integration with Quality of Service (QoS) mechanisms, resulting in complexity and scalability limitations.
Innovation Solution
Implementing a system that dynamically maps Web filtering categories to differentiated services values, allowing network resources to prioritize critical websites by marking packets with these values, thereby integrating with existing QoS mechanisms without adding complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional web filtering solutions are implemented with a pass-through model, then web access control is provided, but the ability to differentiate between significant and less significant websites is lost
Solution Approach 1:
The patent combines web filtering functionality with QoS marking capabilities into a single integrated system. The web filtering server not only determines whether to permit or deny access but also assigns QoS markings that indicate the significance level of different websites, eliminating the need for separate monitoring and enforcing mechanisms
Solution Approach 2:
The web filtering server is designed to perform multiple functions: it acts as both an access control decision-maker and a QoS marking device. This multi-functional approach allows the system to differentiate between significant and less significant websites while using existing network infrastructure for QoS enforcement
2Adaptability or versatility
If monitoring and enforcing mechanisms are added to control web access based on bandwidth and time usage, then website significance can be taken into account, but complexity and delay increase
Solution Approach 1:
The patent merges web filtering and QoS marking into a single operation performed by the web filtering server. Instead of adding separate monitoring and enforcing mechanisms, the system integrates these functions into the existing web filtering infrastructure, reducing complexity while maintaining the ability to control access based on website significance
Solution Approach 2:
The web filtering server performs QoS marking in advance as part of the web filtering decision process. By pre-marking packets with appropriate QoS values before they enter the network, the system eliminates the need for real-time monitoring and dynamic enforcement, reducing both complexity and delay
3Adaptability or versatility
If conventional web filtering solutions are used, then binary permit/deny decisions are provided, but integration with Quality of Service mechanisms is lacking
Solution Approach 1:
The patent combines web filtering decisions with QoS marking in a single integrated process. The web filtering server simultaneously determines access permission and assigns QoS markings, creating a unified system that integrates web filtering with quality of service mechanisms without requiring separate integration components
Solution Approach 2:
The web filtering server automatically performs QoS marking as an inherent part of its web filtering function. The system serves itself by integrating QoS capabilities directly into the filtering decision-making process, eliminating the need for external QoS integration mechanisms
4Productivity
If web filtering servers reside in an internal network segment, then permit/deny decisions can be made, but scalability and performance limitations occur
Solution Approach 1:
The web filtering server is designed to handle both access control decisions and QoS marking functions in a single centralized location. This multi-functional design improves productivity by eliminating the need for separate decision-making and marking operations, while the integrated approach simplifies the network architecture rather than increasing complexity
Data Source
AI summary
Methods and systems for QoS based Web filtering are described. A network access control device either permits or denies access to a web site. The network access control device also contains a mapping table which maps filtering categories to differentiated services values. When a web request is received by the network access control device, a query is sent to a web filtering server. The web filtering server returns a filtering category to the network access control device. The filtering category is mapped to a corresponding differentiated services value. The network access control device grants access privileges to the web request based on the differentiated services value.