6.5.1

n
Create a port group with identical settings, make it use the valid uplink number for the host, and
migrate the virtual machine networking to the port group.
n
Move the NIC to an uplink that participates in the active failover group.
You can use the vSphere Web Client to move the host physical NIC to another uplink.
n
Use the Add and Manage Hosts wizard on the distributed switch.
a Navigate to the distributed switch in the vSphere Web Client.
b From the Actions menu select Add and Manage Hosts.
c On the Select task page, select the Manage host networking option and select the host.
d To assign the NIC of the host to an active uplink, navigate to the Manage physical network
adapters page and associate the NIC to the switch uplink.
n
Move the NIC at the level of the host.
a Navigate to the host in the vSphere Web Client, and on the Configure tab, expand the
Networking menu.
b Select Virtual Switches and select the distributed proxy switch.
c Click Manage the physical network adapters connected to the selected switch, and
move the NIC to the active uplink
Unable to Add a Physical Adapter to a vSphere
Distributed Switch That Has Network I/O Control Enabled
You might be unable to add a physical adapter with low speed, for example, 1 Gbps, to a vSphere
Distributed Switch that has vSphere Network I/O Control version 3 configured.
Problem
You try to add a physical adapter with low speed, for example, 1 Gbps, to a vSphere Distributed Switch
that is connected to physical adapters with high speed, for example, 10 Gbps. Network I/O Control
version 3 is enabled on the switch and bandwidth reservations exist for one or more system traffic types,
such as vSphere management traffic, vSphere vMotion traffic, vSphere NFS traffic, and so on. The task
for adding the physical adapter fails with a status message that a parameter is incorrect.
A specified parameter was not correct: spec.host[].backing.pnicSpec[]
Cause
Network I/O Control aligns the bandwidth that is available for reservation to the 10-Gbps speed of the
individual physical adapters that are already connected to the distributed switch. After you reserve a part
of this bandwidth, adding a physical adapter whose speed is less than 10 Gbps might not meet the
potential needs of a system traffic type.
For information about Network I/O Control version 3, see the vSphere Networking documentation.
vSphere Troubleshooting
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