12.7. Monitoring Network Usage
vCenter Server's graphs provide a wonderful tool for measuring a virtual machine's or a host's network usage.
Monitoring network usage requires a slightly different approach than monitoring CPU or memory. With either CPU or memory, reservations, limits, and shares can dictate how much of these two resources can be consumed by any one virtual machine. Network usage cannot be constrained by these mechanisms. Since virtual machines plug into a virtual machine port group, which is part of a vSwitch on a single host, how the virtual machine interacts with the vSwitch can be manipulated by the virtual switch's or port group's policy. For instance, if you need to restrict a virtual machine's overall network output, you ...
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