Configuring Jumbo Frames

VSX supports Jumbo Frames and lets you configure up to the maximum MTU of the NIC driver.

Included Topics Jumbo Frames on a Virtual System Jumbo Frames on a Virtual Switch Jumbo Frames on a Virtual Router Jumbo Frames on a Virtual System in Bridge Mode

Jumbo Frames on a Virtual System

Configure a Virtual System to enable Jumbo Frames on these interfaces types:

• Physical interface
• Bond interface
• VLAN interface

When you configure the MTU of a bond interface, the MTU of all the slave interfaces are automatically changed to the new value.

Configuring the MTU on Warp Links

• To change the MTU of Warp Links that connect to a Virtual Switch, configure the Virtual Switch settings.
• You can change the MTU of Warp Links that connect to a Virtual Router in the Virtual System settings.

Configuring the MTU on VLANs

• When you increase the MTU of a VLAN trunk, the value of the VLAN interfaces are not changed.
• The MTU of the VLAN trunk cannot be less than the value of a VLAN interface. If you increase the MTU of a VLAN interface to be larger than the VLAN trunk, the MTU of the VLAN trunk is increased to the new value for the VLAN interface.

To configure Jumbo Frames on a Virtual System:

1. Open SmartDashboard.
2. From the Network Objects tree, right-click the Virtual System and select Edit.

   The General Properties window opens.

3. Click Topology.
4. Select the interface and click Edit.

   The Interface Properties window opens.

5. Configure the MTU for the interface.
6. Click OK.

Jumbo Frames on a Virtual Switch

Configure the MTU of a Virtual Switch to enable Jumbo Frames on the Virtual Systems that are connected to the Virtual Switch. When you configure the MTU of the Virtual Switch, all the related Warp Links and interfaces are automatically changed to the new value.

You cannot configure the MTU of a Warp Link from the Virtual System.

To configure Jumbo Frames on a Virtual Switch:

1. Open SmartDashboard.
2. From the Network Objects tree, right-click the Virtual Switch and select Edit.

   The General Properties window opens.

3. Click Topology.
4. Configure the MTU for the Virtual Switch.
5. Click OK.

Jumbo Frames on a Virtual Router

Configure the MTU of a Virtual Router to enable Jumbo Frames on the interfaces. To change the MTU of Warp Links, configure the settings of the Virtual System.

To configure Jumbo Frames on a Virtual Router:

1. Open SmartDashboard.
2. From the Network Objects tree, right-click the Virtual Router and select Edit.

   The General Properties window opens.

3. Click Topology.
4. Select the interface and click Edit.

   The Interface Properties window opens.

5. Configure the MTU for the interface.
6. Click OK.

Jumbo Frames on a Virtual System in Bridge Mode

Configure the MTU of a Virtual System in Bridge Mode to enable Jumbo Frames on the interfaces.

To configure Jumbo Frames on a Virtual System in Bridge Mode:

1. Open SmartDashboard.
2. From the Network Objects tree, right-click the Virtual System and select Edit.

   The General Properties window opens.

3. Click Topology.
4. Configure the MTU for the interface.
5. Click OK.