Database Reference
In-Depth Information
Table 5.5
vSphere QoS Configuration
By implementing QoS, an administrator has the ability to assign the priority
(importance) of a particular resource pool versus its peers. It should be noted that
vSphere itself does nothing with this tag; as stated earlier, this is applied to outbound
traffic. However, physical switches will use these tags to prioritize traffic. Be sure to
work with your network team to ensure QoS is properly implemented.
Table 5.5
displays the how the vSphere QoS tag relates to network priority and the
traffic characteristics of that traffic type.
Note
To learn more about network I/O control, read the “vSphere Networking
for 5.5” white paper:
http://pubs.vmware.com/vsphere-
networking-guide.pdf
.
Back Up the Network
One final note on networking: vSphere allows an administrator to take a snapshot of the
distributed virtual switch configuration. What? That's right. Having this snapshot allows
for ease of deployment, the ability to roll back to a previous configuration, and the
ability to share the configuration with your best friends. This can be done for the
distributed virtual switch and/or a distributed virtual port group. By backing up your
network configuration, you can restore the configuration versus having to rebuild the
network configuration. We highly recommend backing up the network configuration. In
addition, export and save the configuration to a location that is independent of vCenter's
disk.
Summary
