Management Plane Bandwidth Allocation for Packet Switching
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Solution Overview
Problem
Current packet switching devices lack transparent and controllable bandwidth allocation, leading to inefficient network resource utilization due to complex network protocols and reliance on static routing/forwarding table configurations that are nontransparent and uncontrollable.
Innovation Solution
A method and device where a management plane unit receives service transport requests, determines transport paths, and generates routing/forwarding table entries to allocate network bandwidth resources, allowing for transparent and controllable allocation by decoupling the data plane from the control plane's network protocol dependencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the control plane maintains routing tables and forwarding tables through real-time exchange of network information among packet switching devices, then the network can adapt to topology changes, but the bandwidth allocation becomes nontransparent and uncontrollable, reducing network resource utilization efficiency
Solution Approach 1:
The patent extracts the bandwidth allocation function from the control plane and places it in a separate management plane. The management plane receives service transport requests, determines transport paths, and generates routing table entries/forwarding table entries based on service requirements and preset resource allocation policies, while the control plane focuses on network information collection and device control, thus resolving the contradiction between network adaptability and control plane complexity
Solution Approach 2:
The patent segments the network management system into three independent planes: management plane (responsible for resource allocation and path determination), control plane (responsible for network information collection and device control), and data plane (responsible for actual data forwarding). This segmentation allows each plane to focus on specific functions, improving both adaptability and reducing overall system complexity
2Ease of operation
If static routing table/forwarding table entries are configured through CLI or GUI, then configuration is simple, but the allocation is nontransparent and uncontrollable regarding service requirements
Solution Approach 1:
The management plane acts as an intermediary between the service requirements and the control plane devices. It receives service transport requests with QoS requirements, determines appropriate transport paths using preset resource allocation policies, and generates routing table entries/forwarding table entries that reflect service-specific bandwidth allocations, thereby providing transparent and controllable resource allocation while maintaining operational simplicity
3Productivity
If the control plane generates routing tables and forwarding tables based on exchanged network information, then routing decisions can be made, but service indexes such as work efficiency and bandwidth utilization are reduced due to protocol complexity
Solution Approach 1:
The patent extracts the service-specific resource allocation logic from the control plane protocols and places it in the management plane. The management plane uses preset resource allocation policies to determine transport paths and generate routing table entries/forwarding table entries based on service requirements, eliminating the need for complex protocol negotiations and improving work efficiency and bandwidth utilization
Data Source
AI summary
Embodiments of the present invention provide a method and a device for allocating a packet switching resource, which includes: receiving, by a management plane unit, a service transport request carrying service information, where the service information includes source node information, sink node information, quality of service QoS requirement information, and bandwidth requirement information; determining, by the management plane unit, at least one transport path according to the service information and a preset resource allocation policy, and generating a routing table entry/forwarding table entry according to the at least one transport path; and sending, by the management plane unit, the routing table entry/forwarding table entry to data plane units of packet switching devices of each transport path of the at least one transport path. According to the embodiments, transparent and controllable allocation of a network bandwidth resource is implemented, so that utilization efficiency of a network resource is improved.