CN111064663A - High-availability implementation method of virtual router in cloud computing environment - Google Patents

Abstract

A high-availability realization method of a virtual router in a cloud computing environment is provided with two physical hosts, wherein a physical host A and a physical host B are both provided with virtual router modules, heartbeat modules are configured in the two virtual router modules, and heartbeat mechanisms are utilized to detect mutual heartbeat, so that after a host of one network node fails, the other physical host can immediately serve as a network node function, and normal operation of the network function in a cloud computing cluster is ensured.

Description

High-availability implementation method of virtual router in cloud computing environment

Technical Field

The invention relates to the technical field of network virtualization, in particular to a high-availability implementation method of a virtual router in a cloud computing environment.

Background

In the field of cloud computing, software is required to create a virtual router to achieve the mutual communication between the virtual network created by the software and an external network, and a gateway of the virtual network defined by the software and forwarding functions of an internal network and an external network are both in the virtual router defined by the software. An existing cloud computing cluster generally comprises a plurality of physical servers, one physical server is provided with a software-defined virtual router, the routing function between an internal network and an external network of the whole cluster and a self-defined internal network is realized, the physical server where the software-defined virtual router is located is generally called a network node, and if the network node cannot normally work due to faults such as power failure, network disconnection and the like, the network service of the whole cluster cannot normally work.

Disclosure of Invention

In order to overcome the defects of the technologies, the invention provides a high-availability implementation method for a virtual router in a cloud computing environment, which solves the problem that network services of the whole cluster cannot work normally due to network node faults.

The technical scheme adopted by the invention for overcoming the technical problems is as follows:

a high-availability implementation method of a virtual router in a cloud computing environment comprises the following steps:

a) n physical hosts are deployed in the cloud computing cluster, wherein N is a positive integer greater than or equal to 3, virtual router modules are deployed in the physical host A and the physical host B, and taps 0 and tap1 are both deployed in the virtual router modules in the physical host A and the physical host B and serve as gateways of two internal network segments;

b) respectively arranging heartbeat modules in the virtual router modules in the physical host A and the physical host B, wherein the heartbeat modules are used for detecting the heartbeat of the other side;

c) in a normal state, the virtual router module in the physical host A provides a virtual routing function for the whole cloud computing cluster, and the tap0 and the tap1 in the virtual router module in the physical host B are both in a Down state;

d) when the heartbeat module in the physical host B detects that the physical host A cannot work normally, the virtual router modules in the physical host B are all provided with tap0 and tap1 which are placed in an Up state, and the physical host B provides a virtual routing function for the whole cloud computing cluster.

Further, tap _ ext in the physical host a and the physical host B in the step a) is used as an external port of the virtual router.

The invention has the beneficial effects that: the two physical hosts are arranged, the virtual router modules are arranged in the physical host A and the physical host B, the heartbeat modules are configured in the two virtual router modules, and the heartbeat mechanisms are used for detecting the heartbeat of each other, so that after the host of one network node breaks down, the other physical host can serve as the network node function at once, and the normal operation of the network function in the cloud computing cluster is ensured.

Detailed Description

The present invention is further explained below.

A high-availability implementation method of a virtual router in a cloud computing environment comprises the following steps:

a) n physical hosts are deployed in the cloud computing cluster, N is a positive integer larger than or equal to 3, virtual router modules are deployed in the physical host A and the physical host B, and taps 0 and tap1 are both deployed in the virtual router modules in the physical host A and the physical host B and serve as gateways of two internal network segments.

b) And respectively arranging a heartbeat module in the virtual router modules of the physical host A and the physical host B for detecting the heartbeat of the other side.

c) Under a normal state, the virtual router module in the physical host a provides a virtual routing function for the entire cloud computing cluster, and both the tap0 and the tap1 in the virtual router module in the physical host B are in a Down state, that is, the virtual router module in the physical host B does not provide the virtual routing function at this time.

d) When the heartbeat module in the physical host B detects that the physical host A cannot work normally, the virtual router modules in the physical host B are all provided with tap0 and tap1 which are placed in an Up state, and the physical host B provides a virtual routing function for the whole cloud computing cluster.

Because two physical hosts are arranged, the physical host A and the physical host B are both provided with virtual router modules, and heartbeat modules are configured in the two virtual router modules at the same time, and heartbeat mechanisms are utilized to detect mutual heartbeat, the other physical host can serve as a network node function immediately after the host of one network node fails, and the normal operation of the network function in the cloud computing cluster is ensured.

Further, tap _ ext in the physical host a and the physical host B in the step a) is used as an external port of the virtual router. tap _ ext is an external port of the virtual router, and is responsible for network forwarding of the router and external networks.

The above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (2)

1. A high-availability implementation method of a virtual router in a cloud computing environment is characterized by comprising the following steps:

a) n physical hosts are deployed in the cloud computing cluster, wherein N is a positive integer greater than or equal to 3, virtual router modules are deployed in the physical host A and the physical host B, and taps 0 and tap1 are both deployed in the virtual router modules in the physical host A and the physical host B and serve as gateways of two internal network segments;

b) respectively arranging heartbeat modules in the virtual router modules in the physical host A and the physical host B, wherein the heartbeat modules are used for detecting the heartbeat of the other side;

c) in a normal state, the virtual router module in the physical host A provides a virtual routing function for the whole cloud computing cluster, and the tap0 and the tap1 in the virtual router module in the physical host B are both in a Down state;

d) when the heartbeat module in the physical host B detects that the physical host A cannot work normally, the virtual router modules in the physical host B are all provided with tap0 and tap1 which are placed in an Up state, and the physical host B provides a virtual routing function for the whole cloud computing cluster.

2. The method for realizing the high availability of the virtual router in the cloud computing environment according to claim 1, wherein: and the tap _ ext in the physical host A and the physical host B in the step a) is used as an external port of the virtual router.