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How to carry out vSphere network architecture analysis, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

Instead of connecting its vNIC to a specific port on the vSwitch, the virtual machine connects to the port group. " Official document port group is a unique concept in the virtualization field, specifically introduced by VMware for the virtualization platform; at the same time, it can be understood as an enforcement strategy that provides enhanced network security, network segmentation, better performance, high availability, and traffic management. The switch can divide the collision domain, but the ports connected to all switches are in a broadcast domain, and the physical environment can place routers to divide the broadcast domain, but in the virtual environment, how to divide the broadcast domain? of course, there is not a virtual router, so the concept of port group appears. Port groups are distinguished by name, and the name of the port group of the same physical server is unique. Virtual network cards with different port groups will not receive broadcasts from each other, which is not only limited to the same physical server, but also can be understood in this way. all port groups in the data center that are physically connected to the same network (that is, each group can receive broadcasts from other groups) are assigned the same label. Conversely, if the two port groups cannot receive each other's broadcasts, they will be given different labels. By default, the setting of the port group is inherited from the virtual switch in which it is located, and it can also be modified separately at the port group level. In this way, the granularity of the setting can be divided into smaller ones, such as vlan, traffic adjustment, and network card binding adjustment.

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