Communication Control Device BGP Path Priority Management
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Solution Overview
Problem
Conventional redundant networks face unauthorized bandwidth usage due to dynamic routing and subscriber-controlled settings, leading to inefficiencies and increased costs in system switching and failure management.
Innovation Solution
A communication control device sets priorities for Border Gateway Protocol (BGP) paths between active and standby system connection units, discarding non-BGP traffic, and dynamically adjusting priorities to prevent unauthorized bandwidth use during failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both active and standby system devices are configured with redundant paths, then system reliability is improved, but unauthorized bandwidth usage occurs
Solution Approach 1:
The patent implements dynamic priority adjustment for BGP paths based on system state. The active system connection unit dynamically changes the priority of paths between active and standby devices, ensuring that only authorized BGP traffic can utilize the redundant bandwidth while maintaining high availability. This dynamic control prevents unauthorized usage while preserving reliability.
Solution Approach 2:
The patent applies different quality characteristics to different parts of the network path. By setting specific priority levels for BGP traffic versus other traffic on redundant paths, and by selectively enabling/disabling path usage based on system state, the patent ensures that the redundant bandwidth is protected from unauthorized usage while maintaining reliability for authorized operations.
2Adaptability or versatility
If dynamic routing protocols like BGP are used for system switching, then system adaptability is improved, but system complexity increases
Solution Approach 1:
The patent pre-configures priority relationships and path characteristics before failures occur. The active system connection unit establishes predetermined priority levels for different paths and traffic types in advance, so that when switching is needed, the system can rapidly respond without complex real-time calculations, thereby reducing operational complexity while maintaining adaptability.
Solution Approach 2:
The patent implements feedback mechanisms where the active system connection unit monitors system state and automatically adjusts BGP path priorities accordingly. This closed-loop control enables adaptive switching while simplifying complexity through automated decision-making based on pre-established rules and real-time status feedback.
3Ease of operation
If subscriber-controlled settings are allowed on standby devices, then ease of operation is improved, but unauthorized bandwidth usage increases
Solution Approach 1:
The patent changes the parameter of path priority dynamically based on system state and traffic type. By controlling which paths are active for which traffic types at different times, the patent allows subscriber flexibility in configuration while preventing unauthorized bandwidth usage through enforced priority rules that restrict non-BGP traffic on redundant paths.
Data Source
AI summary
A communication system sets a first priority as a priority of a BGP in a path connecting from a terminal to a terminal through an active system connection unit, sets a second priority lower than the first priority as a priority of a BGP in a path connecting from the terminal to the terminal through the standby system connection unit, and sets a third priority which is lower than the first priority and higher than the second priority as a priority of a BGP in a path connecting the active system connection unit and the standby system connection unit. The communication system discards traffic other than a BGP among traffic from the standby system connection unit to the active system connection unit.