Overriding VM Interface Configuration

About this task

WiNG provides a dataplane bridge for external network connectivity for virtual machines (VMs). VM Interfaces define which IP address is associated with each VLAN ID the service platform is connected to and enable remote service platform administration. Each custom VM can have up to a maximum of two VM interfaces. Each VM interface can be mapped to one of 16 VMF ports on the dataplane bridge. This mapping determines the destination for service platform routing.

By default, VM interfaces are internally connected to the dataplane bridge via VMIF1. VMIF1, by default, is an untagged port providing access to VLAN 1 to support the capability to connect the VM interfaces to any of the VMIF ports. This provides the flexibility to move a VM interface onto different VLANs as well as configure specific firewall and QOS rules.

To define or override a VM interface configuration:

Procedure

Go to Configuration → Devices.
The Device Configuration screen displays. This screen lists access points, controllers and service platforms within the managed network.
Select a target device by double-clicking on the device name.

Note
You can also select the target device from the device browser in the lower, left-hand, side of the UI.

The selected device's configuration menu displays.
Go to Profile Overrides → Interface → VM Interfaces.
The VM Interfaces screen displays.
Profile Overrides - VM Interfaces Screen

Note
A blue override icon (to the left of a parameter) defines the parameter as having an override applied. To remove an override go to the Basic Configuration section of the device and click Clear Overrides. This removes all overrides from the device.

Refer to the following to review existing configurations and status to determine whether a parameter requires an override:


Name	The VM interface numerical identifier assigned when the VM interface was created. The numerical name cannot be modified as part of the edit process.
Type	Whether the type is VM interface.
Description	A short description (64 characters maximum) describing the VM interface or differentiating it from others with similar configurations.
Admin Status	A green check mark means the listed VM interface is active and currently enabled with the profile. A red “X” means the VM interface is currently disabled and not available for use. The interface status can be modified with the VM Interface Basic Configuration screen as required.
Mode	The layer 3 mode of the VM interface: either Access or Trunk (as defined within the VM Interfaces Basic Configuration screen). If Access is selected, the listed VM interface accepts packets only from the native VLAN. Frames are forwarded untagged with no 802.1Q header. All frames received on the port are expected as untagged and mapped to the native VLAN. If set to Trunk, the port allows packets from a list of VLANs added to the trunk. A VM interface configured as Trunk supports multiple 802.1Q tagged VLANs and one native VLAN which can be tagged or untagged.
Native VLAN	The numerical VLAN ID (1 - 4094) set for the native VLAN. The native VLAN allows a VM interface to associate untagged frames to a VLAN when no 802.1Q frame is included in the frame. Additionally, the native VLAN is the VLAN untagged traffic is directed over when using a VM interface in trunk mode.
Tag Native VLAN	A green check mark means the native VLAN is tagged. A red “X” means the native VLAN is untagged. When a frame is tagged, the 12-bit frame VLAN ID is added to the 802.1Q header so upstream VM interface ports know which VLAN ID the frame belongs to. The device reads the 12-bit VLAN ID and forwards the frame to the appropriate VLAN. When a frame is received with no 802.1Q header, the upstream VM interface classifies the frame using the default or native VLAN assigned to the Trunk port. A native VLAN allows a VM interface to associate untagged frames to a VLAN when no 802.1Q frame is included in the frame.
Allowed VLANs	The VLANs allowed to send packets over the listed VM interface. Allowed VLANs are listed only when the mode has been set to Trunk.