MD file changes only

Author: Anavi Nahar

src/ResourceManager/Network/Commands.Network/help/Set-AzureRmNetworkInterface.md

@@ -24,40 +24,63 @@ The **Set-AzureRmNetworkInterface** sets the goal state for an Azure network int
 
 ### Example 1: Configure a network interface
 ```
-PS C:\>$Nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
-PS C:\> $Nic.IpConfigurations[0].PrivateIpAddress = "10.0.1.20"
-PS C:\> $Nic.IpConfigurations[0].PrivateIpAllocationMethod = "Static"
-PS C:\> $Nic.Tag = @{Name = "Name"; Value = "Value"}
-PS C:\> Set-AzureRmNetworkInterface -NetworkInterface $Nic
+$Nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
+$Nic.IpConfigurations[0].PrivateIpAddress = "10.0.1.20"
+$Nic.IpConfigurations[0].PrivateIpAllocationMethod = "Static"
+$Nic.Tag = @{Name = "Name"; Value = "Value"}
+Set-AzureRmNetworkInterface -NetworkInterface $Nic
 ```
 
 This example configures a network interface.
-The first command creates a network interface named NetworkInterface1 in resource group ResourceGroup1.
-
+The first command gets a network interface named NetworkInterface1 in resource group ResourceGroup1.
 The second command sets the private IP address of the IP configuration.
-
 The third command sets the private IP allocation method to Static.
-
 The fourth command sets a tag on the network interface.
-
 The fifth command uses the information stored in the $Nic variable to set the network interface.
 
-## PARAMETERS
+### Example 2: Change DNS settings on a network interface
+```
+$nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
+$nic.DnsSettings.DnsServers.Add("192.168.1.100")
+$nic | Set-AzureRmNetworkInterface
+```
 
-### -NetworkInterface
-Specifies a **NetworkInterface** object that represents the goal state for a network interface.
+The first command gets a network interface named NetworkInterface1 that exists within resource group ResourceGroup1. The second command adds DNS server 192.168.1.100 to this interface. The third command applies these changes to the network interface. To remove a DNS server, follow the commands listed above, but replace ```.Add``` with ```.Remove``` in the second command.
 
-```yaml
-Type: PSNetworkInterface
-Parameter Sets: (All)
-Aliases: 
+### Example 3: Enable IP forwading on a network interface
+```
+$nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
+$nic.EnableIPForwarding = 1
+$nic | Set-AzureRmNetworkInterface
+```
+The first command gets an existing network interface called NetworkInterface1 and stores it in the ```$nic``` variable. The second command changes the IP forwarding value to true. Finally, the third command applies the changes to the network interface. To disable IP forwarding on a network interface, follow the sample example, but be sure to change the second command to ```$nic.EnableIPForwarding = 0```.
 
-Required: True
-Position: Named
-Default value: None
-Accept pipeline input: True (ByValue)
-Accept wildcard characters: False
+### Example 4: Change the subnet of a network interface
 ```
+$nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
+$vnet = Get-AzureRmVirtualNetwork -Name VNet1 -ResourceGroupName crosssubcrossversionpeering
+$subnet2 = Get-AzureRmVirtualNetworkSubnetConfig -Name Subnet2 -VirtualNetwork $vnet
+$nic.IpConfigurations[0].Subnet.Id = $subnet2.Id
+$nic | Set-AzureRmNetworkInterface
+```
+The first command gets the network interface NetworkInterface1 and stores it in the ```$nic``` variable. The second command gets the virtual network associated with the subnet that the network interface is going to be associated with. The second command gets the subnet and stores it in the ```$subnet2``` variable. The third command associated the primary private IP address of the network interface with the new subnet. Finally the last command applied these changes on the network interface.
+
+>[!NOTE] 
+>The IP configurations must be dynamic before you can change the subnet. If you have static IP configurations, change then to dynamic before proceeding. 
+
+>[!NOTE]
+>If the network interface has multiple IP configurations, the forth command must be done for all these IP configurations before the final ```Set-AzureRmNetworkInterface``` command is executed. This can be done as in the forth command but by replacing ```0``` with the appropriate number. If a network interface has N IP configurations, then N-1 of these commands must exist.
+
+### Example 5: Associate/Dissociate a Network Security Group to a network interface
+```
+$nic = Get-AzureRmNetworkInterface -ResourceGroupName "ResourceGroup1" -Name "NetworkInterface1"
+$nsg = Get-AzureRmNetworkSecurityGroup -ResourceGroupName "ResourceGroup1" -Name "MyNSG"
+$nic.NetworkSecurityGroup = $nsg
+$nic | Set-AzureRmNetworkInterface
+```
+The first command gets an existing network interface called NetworkInterface1 and stores it in the ```$nic``` variable. The second command gets an existing network security group called MyNSG and stores it in the ```$nsg``` variable. The forth command assigns the ```$nsg``` to the ```$nic```. Finally, the fifth command applies the changes to the Network interface. To dissociate network security groups from a network interface, simple replace ```$nsg``` in the forth command with ```$null```.
+
+## PARAMETERS
 
 ### -InformationAction
 Specifies how this cmdlet responds to an information event.
@@ -98,6 +121,21 @@ Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
+### -NetworkInterface
+Specifies a **NetworkInterface** object that represents the goal state for a network interface.
+
+```yaml
+Type: PSNetworkInterface
+Parameter Sets: (All)
+Aliases: 
+
+Required: True
+Position: Named
+Default value: None
+Accept pipeline input: True (ByValue)
+Accept wildcard characters: False
+```
+
 ### CommonParameters
 This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).