Data transmission method and device, and network system

Abstract

The embodiment of the invention discloses a data transmission method and device, and a network system. The network system comprises a switch, at least one computing node, and at least one network node, wherein the initial status of each virtual router configured in each network node is an active status, and at least one virtual machine is configured in each computing node. The method applied to the switch of the network system comprises the following steps: receiving a target data packet sent by a first host, wherein the target data packet carries an IP address of the first host and a first target IP address; according to the IP address of the first host or the first target IP address, determining a first virtual router from the virtual routers in the active status; and sending the targetdata packet to the first virtual router, so that the first virtual router sends the target data packet to a target virtual machine based on the first target IP address, wherein the target virtual machine is determined by the first virtual router according to the first target IP address. The data transmission method and device and the network system provided by the embodiment of the invention havethe advantage that continuous data transmission can be guaranteed.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method, device and network system. Background technique [0002] Cloud computing is a popular technical term at present. Cloud computing may change the technical basis of the Internet and even affect the structure of the entire industry. Because of this, cloud computing technology is showing a trend of vigorous development, and network systems using cloud computing are also developing rapidly. maintain a high-speed growth trend. The network system applying cloud computing includes a switch, multiple computing nodes and multiple network nodes. The switch is used to provide the transmission of data packets for internal network communication and external network communication. The node is configured with at least one virtual router, and the virtual router is used to provide services for external network communication and internal network communication of ...

AI Technical Summary

Problems solved by technology

In order to ensure the continuous data transmission, the virtual router VR in the available state can be re-determined from the virtual router in the unavailable state B , but when the virtual router VR A When a network failure occurs, the virtual router in the unavailable state can only be in the virtual router VR A After the timer expires, the virtual router VR can be perceived A Enter the abnormal working state, then the above virtual router VR can be re-determined B , visible, in the virtual router VR A After the failure, re-determine the virtual router VR B Previously, the switch was unable to transmit received packets to the corresponding virtual machines, resulting in interruption of data transmission

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