A virtual machine IP resource management method of a cloud computing platform

Abstract

The present invention provides a virtual machine IP resource management method of a cloud computing platform, comprising the following steps: (1) applying for an IP when the virtual machine is created; (2) the cloud platform responding to the IP application of the virtual machine and returning optional IP range information; (3) Select the virtual machine IP according to the returned optional IP range information; (4) The cloud platform uses the selected IP address to generate and bind the physical address of the corresponding virtual machine according to the preset mapping rules, and writes it into the virtual machine. (5) Set the mapping call of the IP address in the virtual machine according to the selected IP, and the mapping call is used to set the virtual machine IP according to the selected IP when the virtual machine starts. Reduce network bandwidth and time consumption. The IP of the virtual machine is fixed, avoiding the operation of NMAP scanning the entire network IP segment. In addition, there is no need to search the ARP cache or IPTABLE record file to determine the IP address obtained by the virtual machine, reducing program time consumption .

Description

technical field [0001] The invention relates to the field of cloud technology, in particular to a virtual machine IP resource management method of a cloud computing platform. Background technique [0002] Cloud computing is a resource pool that distributes computing tasks on a large number of computers, enabling various application systems to obtain computing power, storage space, and information services as needed. Virtualization realizes the logical abstraction and unified representation of IT resources, plays a huge role in large-scale data center management and solution delivery, and is the most important technical cornerstone supporting the great concept of cloud computing. The cloud platform can virtualize physical resources through virtualization technology, and a single physical machine can run multiple virtual machines with different operating systems at the same time. In order for users to use the virtual machine through the terminal, the cloud platform needs to a...

AI Technical Summary

Problems solved by technology

[0007]1. The above technology relies on DHCP to distribute IP uniformly, which will lead to the following disadvantages:

[0008] Disadvantage a: When there are multiple network segments, there are multiple DHCPs, and the virtual machine broadcasts a DHCPdiscover packet to request an IP, and will get multiple DHCP server offer response packets, and the virtual machine selects the fastest response DHCP server packet, so it may occur The virtual machines on the same physical host are on different network segments, which will cause normal communication between the virtual machines or between the virtual machines and the physical host where they are located.

[0009] Disadvantage b: IP addresses are dynamically assigned by DHCP, which cannot ensure that the IP assigned to the virtual machine is fixed each time, resulting in the virtual machine being unable to be provided externally as an application server Serve

[0010]2. NMAP will cause network storms and waste network bandwidth

[0011] NMAP scans the IP of the network segment by using the PING operation of the ICMP protocol, so as to obtain the corresponding relationship between MAC and IP in the ARP cache. Perform a scan of the entire network segment to obtain the latest virtual machine MAC-IP correspondence, which can easily cause network storms and waste network bandwidth

[0012]3. It takes a lot of time to determine the relationship between MAC and IP

When querying the specific IP of a virtual machine, it is necessary to traverse the entire IPTABLE record file or DHCP database information file, so the search time is too expensive

In addition, the record file is continuously increasing, and there will be old data before. When the query occurs before the record file is updated, the obtained IP is old data, making it impossible to use the virtual machine normally.

[0014] 4. When the number of virtual machines is more than the IP data set by DHCP, there is a situation that the virtual machines cannot obtain the IP. Since the IP is not managed as a resource, the user can start the virtual machine than in the DHCP server if the CPU, storage, and memory are sufficient. For virtual machines with a large number of IP domains, some virtual machines cannot be assigned IP addresses. These virtual machines will continuously broadcast DHCPDiscover data packets according to certain time rules, which will increase the network load on the cloud platform.

For virtual machines without IP, users cannot operate virtual machines by establishing network links. These unusable virtual machines will waste cloud platform CPU, storage and memory resources after startup

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