Methods and devices for configuring and issuing Open Flow items

Abstract

The present application provides a method and an apparatus for configuring and delivering a flow table entry. The method comprises: a switch sending, to a controller, a request message for requesting delivering a flow table entry, the request message carrying a to-be-forwarded data packet; after the controller receives the request message, the controller generating all flow table entries matching the to-be-forwarded data packet, and returning, to the switch, a response message carrying all the flow table entries matching the to-be-forwarded data packet; after then switch receives the response message, the switch extracting all the flow table entries matching the to-be-forwarded data packet from the response message; and aggregating all the extracted flow table entries into flow table entries of a hardware layer, and when the switch supports the flow table entries of the hardware layer, the switch configuring the flow table entries of the hardware layer into a flow table of the hardware layer. The method and the apparatus for configuring and delivering a flow table entry in the present application can shorten the time of configuring flow table entries of a hardware layer into a flow table of the hardware layer, can shorten the delay of forwarding the data packets, and can reduce the number of lost packets of the data packets.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular to a method and device for configuring and delivering flow entries. Background technique [0002] OpenFlow network is a new type of innovative network architecture, mainly composed of controllers and switches. The function of the switch is focused and simplified, and it is only responsible for data forwarding, while the controller performs centralized control of the entire network to realize the function of the control layer. The controller exchanges information with the switch through the standard OpenFlow protocol, so as to perform unified, flexible and efficient network maintenance and management. [0003] The switch is the core component of the entire OpenFlow network, and the flow table records the rules for the switch to forward data packets. The flow table usually consists of multiple flow table items, each flow table item is a data packet forwarding ...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and device for configuring and delivering flow entries, which are used to solve the problem that the configuration time of flow entries at the hardware layer in the prior art is relatively long, resulting in an increase in the forwarding delay of data packets. , and the problem of data packet loss may occur, the technical solution is as follows:

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