A method and switch for realizing virtual machine packet forwarding

Abstract

An embodiment of the present invention provides a method for realizing message forwarding of a virtual machine, including: receiving a first message sent by a first virtual machine on a first server and including a first virtual machine identifier and a virtual network identifier to which the first virtual machine belongs; Establish a first channel according to the first virtual machine identifier in the first message and the virtual network identifier to which the first virtual machine belongs, and add the port connected to the gateway server and the port connected to the first server to the In the first channel, learning the first virtual machine identifier on the port connected to the first server; sending the data sent by the first virtual machine through the port connected to the gateway server in the first channel message. At the same time, the embodiment of the present invention also provides a switch for forwarding virtual machine messages. The present invention reduces the complexity of data center network operation and maintenance, improves the flexibility of the network, and realizes the automatic connection between the physical network and the virtual network.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and a switch for realizing message forwarding of a virtual machine. Background technique [0002] The purpose of system virtualization is to virtualize and run one or more virtual machines (Virtual Machine, VM for short) on a physical machine by using a virtualization manager (Virtual Machine Monitor, referred to as VMM). A logical computer system running in an isolated environment with complete hardware capabilities, including guest operating systems and applications within them. [0003] A virtual network refers to a virtual network path composed of virtual network devices such as virtual switches and virtual routers running on the Hypervisor layer in a virtualized server. The physical network corresponding to the virtual network is a physical network path composed of physical network devices such as switch hardware devices and router hardware devices. [0004] A...

AI Technical Summary

Problems solved by technology

The problem with this approach is that any Layer 2 message will be forwarded on all access switches, and the Layer 2 broadcast domain will expand to the entire data center network

[0009] 2) When the virtual machine needs to be migrated, the administrator adds the corresponding network configuration (such as VLAN) to the target network. This manual configuration method is prone to omissions and the workload is complicated. It is generally operated by different departments, which also involves the tacit cooperation of the two departments, so it is difficult to ensure that the business will not be interrupted during the migration

Images