Dynamic IPoE CLIPS Subscriber Classification via Address Range Matching
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Solution Overview
Problem
Current Broadband Network Gateway (BNG) routers rely on manual configuration or the DHCP protocol for subscriber classification, limiting their ability to dynamically classify subscribers in scenarios where IP addresses are assigned before reaching the BNG, especially in secured access networks.
Innovation Solution
A method where the BNG classifies subscribers based on predefined address ranges, creating a new subscriber circuit upon detection of a source address within a configured range, independent of the DHCP protocol, using a parent circuit configured to expect dynamic IPoE CLIPS clients and performing authentication and authorization through an AAA server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual configuration or DHCP protocol is used for subscriber classification, then service selection and traffic accounting can be provided, but dynamic classification of subscribers with pre-assigned IP addresses is not possible
Solution Approach 1:
The system automatically detects new subscriber IP addresses within the predefined range and dynamically creates subscriber circuits without requiring manual configuration or DHCP protocol interaction. The BNG router autonomously classifies subscribers based on source IP address matching against the configured range, enabling self-service dynamic classification.
Solution Approach 2:
The invention changes the classification parameter from DHCP protocol-dependent to IP address range-based. By configuring a range of IP addresses on the parent circuit and matching source addresses against this range, the system enables dynamic subscriber classification for pre-assigned IP addresses without relying on manual configuration or DHCP exchanges.
2Extent of automation
If DHCP protocol is used for dynamic circuit creation, then automatic subscriber classification is achieved, but it fails when IP addresses are assigned before reaching the BNG
Solution Approach 1:
The invention extracts the IP address matching functionality from the DHCP protocol dependency. By separating the circuit creation trigger from DHCP protocol exchanges and using solely IP address range matching, the system enables automatic circuit creation for subscribers with pre-assigned IP addresses that never undergo DHCP negotiation.
Solution Approach 2:
The predefined IP address range acts as an intermediary between the parent circuit and subscriber circuits. Instead of relying on DHCP protocol messages as the intermediary for subscriber identification, the system uses IP address range matching as the mediating mechanism to automatically create subscriber circuits for pre-assigned addresses.
3Reliability
If static CLIPS is used for service selection, then traffic accounting is provided, but dynamic subscriber classification cannot be performed
Solution Approach 1:
The system introduces dynamic IP address range matching to the previously static CLIPS framework. By continuously monitoring incoming traffic for source addresses within the configured range and automatically creating subscriber circuits upon detection, the system combines the reliability of structured service selection with the adaptability of dynamic classification.
Data Source
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AI summary
Embodiments of the present disclosure include methods and apparatus for providing virtual channelization of un-channelized media. A parent circuit is configured to expect dynamic IPoE CLIPS clients. Traffic having a source address is received from an access point. A circuit lookup is performed based on the source address. Upon a determination from the circuit lookup that a circuit corresponding to the traffic from the source address does not exist, the parent circuit determines whether the source address of the traffic falls within a predefined range of addresses and notifies a control plane of the parent circuit that a new IP address has been detected for dynamic IPoE CLIPS.