Path state reporting method based on centralized control plane

Abstract

The present invention proposes a path status report method based on a centralized control plane, which can track the actual path status through which data streams flow, and assist network managers and their network management application programs to analyze and troubleshoot more efficiently. The design of the present invention focuses on compatibility with other network management applications and network components. By filling in the identification information of the detection packet in the payload, correct detection can be obtained without restricting the use and modification of the packet header. result.

Description

technical field [0001] The present invention relates to a path state reporting method, especially a cost-effective method, which focuses on compatibility with other network management applications and network components, and can be combined with other applications without affecting other applications to form a more complete Detection tool, or used for network self-optimization, and adopts a centralized control plane path status reporting mechanism, which can track the actual path of data flow and provide more efficient analysis for network managers and network management applications With the ability to eliminate obstacles, it effectively reduces CAPEX (Capital Expenditure_capital expenditure) and OPEX (Operating Expenditure_operational expenditure) based on the path status return method of the centralized control plane. Background technique [0002] In traditional networks, switches and routers not only need to forward packets, but also need to understand the network topolo...

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Problems solved by technology

[0012] However, SDN traceroute assumes that a certain field in the packet header can be reserved for the return detection packet, and it is impractical to prohibit all components and network management applications in the network from using this field

Although the developers of SDN traceroute may use their authority to require all application developers to comply with this specification, it will still reduce the degree of freedom of the controlled network and virtually limit the functions of other SDN applications.

In addition, the number of bits that can be used in the packet header is limited, which may cause multiple detection packets to correspond to the same label. If the detection packet is copied by other applications and sent to the network as a redundant backup, SDN traceroute may not be able to measure correctly measurement path

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