Jumbo Frame Support

Jumbo frames are the data frames that are larger than 1500 bytes and includes the Layer 2 header and frame check sequence. Jumbo frames functionality can be configured on the following and can support up to 9216 bytes of payload:

  • Mobility Controllers (7000 Series controllers, 7200 Series controllers, and Mobility Controller Virtual Appliances.
  • Mobility Master (Mobility Master Virtual Appliance and hardware Mobility Master)

In centralized deployments, frames that are more than 1500 bytes in size are generated from the AP to the managed device during encryption and enabling AMSDU. Therefore, whenever the AP associates to the managed device, jumbo frames are used to get the highest network performance. If this functionality is not supported, the data frames gets fragmented, which reduces the overall throughput of the network and makes the network slow.

Jumbo frames are not supported on Mobility Controller Virtual Appliances and Mobility Master Hardware Appliances running on Windows Hyper-V.

You can enable the jumbo frame support in the following scenarios:

AMSDU is not supported on x86 platforms.

The following sections describe:

Limitations for Jumbo Frame Support

This release of ArubaOS does not support the jumbo frames for the following scenarios:

Configuring Jumbo Frame Support

You can use the CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. to configure the jumbo frame support.

  • To enable jumbo frame support on a port channel:

    (host) [mynode] (config) #interface port-channel <id> jumbo

  • To enable jumbo frame support on a port:

    (host) [mynode] (config) #interface gigabitethernet <slot>/<module>/<port> jumbo

Viewing Status of Jumbo Frame Support

Execute the following command to view the global status of the jumbo frame support:

(host) [mynode] #show firewall

Execute the following command to view the jumbo frame status on a port:

(host) [mynode] #show interface gigabitethernet <slot>/module>/<port>

Execute the following command to view the jumbo frame status on a port channel:

(host) [mynode] #show interface port-channel <id>