XenServer networking

XenServer provides virtual networking features that let you build networks for your virtual machines the same way you build networks for physical machines.

So you can connect virtual machines to your production network like physical machines or you can build private networks within a host or pool for testing, development, or security purposes. Also, you can connect virtual machines to your VLAN networks using standard VLAN configurations.

The most important networking components are physical network interfaces (NIC), virtual interfaces, and networks.

Each physical network interface on your host is represented in XenServer with an object called PIF.

Virtual machines connect to networks using virtual NICs, known as virtual interfaces. Virtual interfaces let VMs send and receive network traffic. Each virtual NIC configured on a virtual machine is represented in XenServer with an object called VIF.

Just like network interfaces in the physical world, each virtual interface must...