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Measures reported by VmNetTrafficTest
Each virtual network is serviced by a single virtual switch (vSwitch). Typically, every vSwitch is associated with one/more port groups; a port group specifies port configuration options such as bandwidth limitations and VLAN tagging policies for each logical port on the vSwitch, and thus defines how a connection to the network is made via the vSwitch.
This test monitors the traffic to and from each of the port groups associated with every vSwitch that services the virtual networks on an ESX server. Besides alerting administrators to abnormally high traffic on a vSwitch, this test also leads them to the exact VM in the virtual network that is responsible for this abnormality.
The measures
made by this test are as
follows:
| Measurement |
Description |
Measurement
Unit |
Interpretation |
| Data_received |
Indicates the rate at which data is received by this port group mapped to this vSwitch.
|
Mbps |
An increase in traffic to the server can indicate an increase in accesses to the server (from users or from other applications external to the server) or that the server is under an attack of some form.
The detailed diagnosis of this measure lists the top-10 VMs in the virtual network that are receiving data at a high rate. Using this information, you can accurately identify the VM that is experiencing the most traffic.
|
| Packets_received |
Indicates the rate at which data packets were received by this port group mapped to this vSwitch. |
Packets/Sec |
An increase in traffic to the server can indicate an increase in accesses to the server (from users or from other applications external to the server) or that the server is under an attack of some form.
The detailed diagnosis of this measure lists the top-10 VMs in the virtual network that are receiving packets at a high rate. Using this information, you can accurately identify the VM that is experiencing the most traffic.
|
| Data_transmitted |
Indicates the rate at which data was transmitted by this port group mapped to this vSwitch. |
Mbps |
An increase in traffic from the server can indicate an increase in accesses from the server (from users on the ESX server, or from the virtual machines on the server).
The detailed diagnosis of this measure lists the top-10 VMs in the virtual network that are sending data at a high rate. Using this information, you can accurately identify the VM that is experiencing the most traffic.
|
| Packets_transmitted |
Indicates the rate at which packets were transmitted by this port group mapped to this vSwitch. |
Packets/Sec |
An increase in traffic from the server can indicate an increase in accesses from the server (from users on the ESX server, or from the virtual machines on the The detailed diagnosis of this measure lists the top-10 VMs in the virtual network that are sending packets at a high rate. Using this information, you can accurately identify the VM that is experiencing the most traffic.
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