Network Device Negotiation Counterpart Selection
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Solution Overview
Problem
Current methods for selecting a negotiation counterpart in IP networks, such as those using random or fixed policies, fail to ensure the selection of a suitable device for specific technical objectives like bandwidth reservation, address resource finding, or VPN tunnel establishment, leading to suboptimal negotiation outcomes.
Innovation Solution
A method where a first device sends a discovery message to multiple network devices, receives response messages with characteristic information about each supporting device, and selects the most suitable counterpart based on the information, ensuring a device with the highest technical objective support degree is chosen for negotiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If random policy is used to select negotiation counterpart, then selection process is simple, but negotiation effectiveness cannot be ensured
Solution Approach 1:
The patent changes the selection parameter from random selection to capability-based selection. The first device evaluates multiple parameters including available bandwidth, forwarding capacity, and address resource segments of candidate devices, then selects the negotiation counterpart with the highest综合能力 score, ensuring both systematic operation and effective negotiation outcomes
Solution Approach 2:
The patent implements a feedback mechanism where the first device receives capability information from candidate devices through discovery messages, evaluates their technical parameters, and uses this feedback to make informed selection decisions. This closed-loop approach ensures negotiation effectiveness while maintaining operational simplicity through automated evaluation
2Ease of operation
If fixed policy is used to select negotiation counterpart, then selection process is simple, but suitability for specific technical objectives cannot be ensured
Solution Approach 1:
The patent transforms the static fixed policy into a dynamic selection mechanism. The selection criteria adapt based on the specific technical objective (bandwidth reservation, address resource finding, or VPN tunnel establishment) and real-time capability information of candidate devices, allowing the system to flexibly match devices to objectives while maintaining automated operation
Solution Approach 2:
The patent applies different evaluation weights and criteria for different technical objectives. For bandwidth reservation, available bandwidth is the primary criterion; for address resources, consecutive address segment length is prioritized; for VPN tunnels, forwarding capacity is most important. This localized quality approach ensures optimal matching for each specific objective type
3Reliability
If capability-based selection is implemented, then negotiation effectiveness is improved, but selection process complexity increases
Solution Approach 1:
The patent segments the selection process into distinct phases: capability advertisement (devices publish their parameters), capability evaluation (first device assesses candidates based on technical objectives), and selection decision (choosing the highest-scoring candidate). This segmentation manages complexity by making each phase independent and systematic, ensuring negotiation effectiveness through structured evaluation
Solution Approach 2:
Candidate devices autonomously publish their capability information through discovery messages, eliminating the need for the first device to actively query each parameter. This self-service approach reduces the complexity of information gathering while maintaining comprehensive capability assessment for effective negotiation partner selection
Data Source
AI summary
Embodiments of the present invention provide a method for selecting a negotiation counterpart. Specifically, the first device sends a discovery message in the network, and the discovery message includes a technical objective. The first device receives a first response message with which a second device replies, and receives a second response message with which a third device replies. The first response message carries information about a characteristic that is of the second device and that supports implementation of the technical objective, and the second response message carries information about a characteristic that is of the third device and that supports implementation of the technical objective. The first device can select a device with a higher technical objective support degree from the second device and the third device as the negotiation counterpart according to the first response message and the second response message.