Set-VirtualSwitch Command | Vmware PowerCLI Reference

Set-VirtualSwitch

This cmdlet modifies the properties of the specified virtual switch. The server rounds the value of the NumPorts parameter up to the closest exact power of two, greater than the provided number. When updating NumPorts, the user needs to restart the ESX/ESXi host for the change to take effect.

Syntax

Set-VirtualSwitch
-VirtualSwitch < VirtualSwitch[] >
[ [-NumPorts ] < Int32 > ]
[ [-Nic ] < String[] > ]
[ [-Mtu ] < Int32 > ]
[-Server < VIServer[] > ]
[CommonParameters]

Parameters

Required Parameter Name Type Position Features Description
required
 VirtualSwitch VirtualSwitch[] named
  • pipeline
  • wildcards
 Specifies the virtual switch you want to configure.
optional NumPorts Int32 1
Specifies the VirtualSwitch port number. The value is rounded to the closest exact power of two, greater than the provided number (for example, if the user specifies 67, this number is rounded to 128). The ESX host to which the virtual switch belongs, must be restarted for the change to take effect. Note that the port number displayed in the vSphere Client might differ from the value that you specified for the NumPorts parameter. Note: In ESX 5.5 or later, standard virtual switches are always elastic, so the NumPorts parameter is no longer applicable and its value is ignored.
optional Nic String[] 2
Specifies new network interface cards for the virtual switch. The old NICs are replaced by the specified ones.
optional Mtu Int32 3
Specifies the maximum transmission unit (MTU) associated with the specified virtual switch (in bytes). The MTU value must be greater than 0.
optional Server VIServer[] named
  • wildcards
 Specifies the vCenter Server systems on which you want to run the cmdlet. If no value is provided or $null value is passed to this parameter, the command runs on the default servers. For more information about default servers, see the description of Connect-VIServer.

Output

VMware.VimAutomation.ViCore.Types.V1.Host.Networking.VirtualSwitch

Examples

Example 1 

$vswitch = New-VirtualSwitch -Host 10.23.115.67 -Name VSwitch

Set-VirtualSwitch -VirtualSwitch $vswitch -MTU 500

Creates a new virtual switch named VSwitch on the virtual machine host on IP address 10.23.115.67. Then sets the virtual switch MTU to 500.

Example 2 

$vswitch = New-VirtualSwitch -VMHost 10.23.115.67

$networkAdapters = Get-VMHostNetworkAdapter -VMHost 10.23.115.67 -Physical

$phNic = $networkAdapters[0]

$vSwitch | Set-VirtualSwitch -Nic $phNic

Creates a new virtual switch named VSwitch on the virtual machine host on IP address 10.23.115.67. Then assigns to it a network adapter.

Example 3 

Get-VMHost *.128 | Get-VirtualSwitch | Select-Object -First 1 | Set-VirtualSwitch -Nic vmnic5

Add a physical network adapter named 'vmnic5' to the first switch of the host. Note that the 'vmnic5' adapter must not be assigned to other virtual switches.

Related Commands

VirtualSwitch

This cmdlet retrieves the virtual switches associated with a virtual machine host or used by a virtual machine.

This cmdlet creates a new virtual switch.

This cmdlet removes the specified virtual switches from their locations.

This cmdlet modifies the properties of the specified virtual switch.

VirtualSwitchPhysicalNetworkAdapter

This cmdlet adds a host physical NIC to a standard virtual switch.

This cmdlet removes the specified host physical NICs from the standard virtual switch.