Get-VirtualPortGroup - Trying to get only port groups attached to one switch.

[GuruAnt]

I've got the following as part of a script I'm working on. I'm wanting to list all the port groups on the VMSwitch on all servers.

ForEach($objHost in $ObjAllHosts){
$strVSwitch = Get-Virtualswitch -VMHost (Get-VMHost $objHost) | where-object { $_.Name -match "VMswitch" }
$objPortGroups = Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) -VirtualSwitch $strVSwitch | Sort-Object -Property Name
}

The problem is that this doesn't seem to populate the $objPortGroups variable. Dot-sourcing, and investigating further, I saw that:

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) -VirtualSwitch $strVSwitch

Gives me a list of all the port groups, on all the switches.

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) | Where-Object {$_.VirtualSwitch -match "VMSwitch"} 

Gives me nothing.

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) | Where-Object {$_.VirtualSwitch -like "*"} 

Gives me all port groups on all switches, whereas:

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) | Where-Object {$_.VirtualSwitch -like "VM*"} 

Gives me nothing.

Is there something special about the .VirtualSwitch property that prevents this from working properly? Is there some other way of getting a list of virtual port groups on "VMSwitch", and not vSwitch0 or vMotion?

[LucD · Accepted solution]

I think the name of the property in the VirtualPortGroupImpl object you want is VirtualSwitchName not VirtualSwitch.

[GuruAnt]

Ah, that would explain that!

It's working now using the Where-Object, but this doesn't explain why:

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) -VirtualSwitch $strVSwitch

Is reporting all port groups on all switches. Or does it not do what I think it does?

[ggochkov]

I hope to explain:

Get-VirtualPortGroup -VMHost (Get-VMHost $objHost) -VirtualSwitch $strVSwitch

in fact this is an aggregation of the:<span class="jive-thread-reply-body-container">{code:plain}
'Get-VirtualPortGroup -VMHost (Get-VMHost $objHost)' and 'Get-VirtualPortGroup -VirtualSwitch $strVSwitch'{code}

[ggochkov]

... to be more descriptive I'll paste my test on this command:

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> Get-VirtualPortGroup -VirtualSwitch $vs[0]

Name Key VirtualSwitch VLanId

-

---

--- -

---

-

---

Service... key-vim.host.PortGroup-Serv... vSwitch0 0

VM Network key-vim.host.PortGroup-VM N... vSwitch0 0

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> Get-VirtualPortGroup -VMHost $h -VirtualSwitch $vs[0]

Name Key VirtualSwitch VLanId

-

---

--- -

---

-

---

VM Network key-vim.host.PortGroup-VM N... vSwitch0 0

Service... key-vim.host.PortGroup-Serv... vSwitch0 0

Service... key-vim.host.PortGroup-Serv... vSwitch1 0

VMkernel key-vim.host.PortGroup-VMke... vSwitch1 0

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> connect-viserver 10.23.113.118 -user Administrator -Password '...'

There were one or more problems with the server certificate:

• A certification chain processed correctly, but terminated in a root certificat

e which isn't trusted by the trust provider.

• The certificate's CN name does not match the passed value.

Name Port User

-

---

-

---

-

---

10.23.113.118 443 Administrator

<Now connecting to another host:>

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> $h = Get-vmhost

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> $h

Name State Id

-

---

-

---

--

10.23.114.195 Connected HostSys...

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows> Get-VirtualPortGroup -VMHost $h -VirtualSwitch $vs[0]

Name Key VirtualSwitch VLanId

-

---

--- -

---

-

---

VM Network key-vim.host.PortGroup-VM N... vSwitch0 0

New-VMH... key-vim.host.PortGroup-New-... vSwitch0 0

SetVmHo... key-vim.host.PortGroup-SetV... vSwitch0 0

Service... key-vim.host.PortGroup-Serv... vSwitch0 0

VMkernel key-vim.host.PortGroup-VMke... vSwitch1 0

Service... key-vim.host.PortGroup-Serv... vSwitch0 0

VM Network key-vim.host.PortGroup-VM N... vSwitch0 0

PS C:\Program Files\VMware\Infrastructure\VIToolkitForWindows>

This in fact confirms it is an aggregation.