Add unfinished scripts for building Linux topology

es2025/linux/Create-PortGroups.ps1

@@ -0,0 +1,61 @@
+<#
+Required parameter:
+-SwitchName   Name of the existing standard vSwitch where the port groups will be created.
+
+Optional parameter:
+-BaseVlanId   Starting VLAN ID. Default is 100.
+              The script creates:
+              HQ-SERVER-Linux = BaseVlanId
+              HQ-DMZ-Linux = BaseVlanId + 1
+              HQ-CLIENT-Linux = BaseVlanId + 2
+              INET-HQ-Linux = BaseVlanId + 3
+              INET-BRANCH-Linux = BaseVlanId + 4
+              HOME-Linux = BaseVlanId + 5
+              BR-SERVER-Linux = BaseVlanId + 6
+              BR-CLIENT-Linux = BaseVlanId + 7
+
+Example:
+.\Create-PortGroups.ps1 -SwitchName vSwitch0
+#>
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true)]
+    [string]$SwitchName,
+
+    [ValidateRange(1, 4087)]
+    [int]$BaseVlanId = 100
+)
+
+$ErrorActionPreference = 'Stop'
+
+$switch = Get-VirtualSwitch -Name $SwitchName -ErrorAction Stop
+
+$portGroups = @(
+    @{ Name = 'HQ-SERVER-Linux'; VlanId = $BaseVlanId },
+    @{ Name = 'HQ-DMZ-Linux'; VlanId = $BaseVlanId + 1 },
+    @{ Name = 'HQ-CLIENT-Linux'; VlanId = $BaseVlanId + 2 },
+    @{ Name = 'INET-HQ-Linux'; VlanId = $BaseVlanId + 3 },
+    @{ Name = 'INET-BRANCH-Linux'; VlanId = $BaseVlanId + 4 },
+    @{ Name = 'HOME-Linux'; VlanId = $BaseVlanId + 5 },
+    @{ Name = 'BR-SERVER-Linux'; VlanId = $BaseVlanId + 6 },
+    @{ Name = 'BR-CLIENT-Linux'; VlanId = $BaseVlanId + 7 }
+)
+
+foreach ($portGroup in $portGroups) {
+    $existing = Get-VirtualPortGroup -VirtualSwitch $switch -Name $portGroup.Name -ErrorAction SilentlyContinue
+
+    if ($existing) {
+        if ($existing.VLanId -ne $portGroup.VlanId) {
+            Set-VirtualPortGroup -VirtualPortGroup $existing -VLanId $portGroup.VlanId | Out-Null
+            Write-Host "Updated $($portGroup.Name) VLAN to $($portGroup.VlanId)"
+        }
+        else {
+            Write-Host "$($portGroup.Name) already exists"
+        }
+
+        continue
+    }
+
+    New-VirtualPortGroup -VirtualSwitch $switch -Name $portGroup.Name -VLanId $portGroup.VlanId | Out-Null
+    Write-Host "Created $($portGroup.Name) with VLAN $($portGroup.VlanId)"
+}