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A flow table matching method, device and openflow switching system

A first-class flow table and flow table technology, applied in the field of data exchange, can solve problems such as the inability to meet business needs, and the inability to dynamically update the Switch matching domain.

Inactive Publication Date: 2018-06-26
HANGZHOU HUAWEI DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing Switch matching domain cannot be updated dynamically. If the matching domain needs to be updated, the current software and hardware must be upgraded to support it, which cannot meet business needs.

Method used

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  • A flow table matching method, device and openflow switching system
  • A flow table matching method, device and openflow switching system
  • A flow table matching method, device and openflow switching system

Examples

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Embodiment Construction

[0050] An embodiment of the present invention provides a flow table matching method, including: receiving a jump instruction and a matching instruction issued by the controller for the first flow table, the matching instruction is used to indicate that the matching field is mapped to a mapping value, and the The mapping value is written into the Metadata field of the metadata and passed to the second flow table, the matching instruction includes parameters for mapping the matching field to the mapping value, and the jump instruction is used to indicate the jump The second flow table: establish a first flow entry in the first flow table, the instruction set of the first flow entry is the jump instruction and the matching instruction, wherein the matching instruction is used for the switch to receive After the data packet, according to the parameters included in the matching instruction for mapping the matching field to the mapping value, the matching field is mapped to a mapping...

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Abstract

The invention discloses a flow table matching method, device and OpenFlow switching system, so as to realize the matching of any field in any data flow without changing the existing hardware logic and standard protocol. The method includes: receiving a jump instruction and a matching instruction issued by the controller for the first flow table; establishing a first flow entry in the first flow table; receiving a jump instruction issued by the controller for the second flow table A flow mode message; establishing a second flow entry in the second flow table. The present invention lays the foundation for the realization of a truly flexible programmable software-defined network, which can assist network service operators to reduce capital expenditures and operational expenditures, and enable traditional IP networks to have more flexible real-time service-oriented network abstraction and management capabilities .

Description

technical field [0001] The invention relates to the field of data exchange, in particular to a flow table matching method, device and OpenFlow exchange system. Background technique [0002] OpenFlow technology allows a network to be programmed as if the network were a computer. OpenFlow and software-defined network (Software Defined Network, referred to as SDN) can directly provide the abstraction layer of the physical network to the control element, allowing the network to be set and operated through software. The packet forwarding process is transformed into an independent process completed by the OpenFlow switch (OpenFlowSwitch) and the control server (Controller). [0003] The OpenFlow switch consists of three parts: the flow table (Flow Table), the security channel and the OpenFlow protocol. The flow table is composed of the match field (Match Field), the counter (Counters) and the instruction set (Instructions), which are used to store the forwarding of data packets. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04L45/74
CPCH04L69/22H04L45/38H04L45/745
Inventor 冯强沈伟锋赵秀楚
Owner HANGZHOU HUAWEI DIGITAL TECH
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