Users Guide

Table Of Contents
123| Network Configuration Parameters Dell Networking W-Series ArubaOS 6.5.x| User Guide
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.
ArubaOS supports jumbo frames between 11ac APs and both W-7000 Series and W-7200 Series controllersonly.
You can enable the jumbo frame support in the following scenarios:
l Tunnel node: In a tunneled node deployment, the wired clients connected on the tunneled nodes can send
and receive the jumbo frames.
l L2/L3 GRE tunnels: When you establish a GRE tunnel between two controllers, the clients on one controller
can send and receive jumbo frames from the clients on the other controller on enabling jumbo frames.
l Between wired clients: In a network where clients connect to the controller with jumbo frames enabled
ports can send and receive the jumbo frames.
l Wi-Fi tunnel: A Wi-Fi tunnel can support an AMSDU jumbo frame for an AP (The maximum MTU supported
is up to 9216 bytes).
Limitations for Jumbo Frame Support
This release of ArubaOS does not support the jumbo frames for the following scenarios:
l IPsec, IPIP, and xSec.
l IPv6 fragmentation/reassembly.
Configuring Jumbo Frame Support
You can use the WebUI or CLI to configure the jumbo frame support.
In the WebUI
To enable jumbo frame support globally:
1. Navigate to the Configuration > ADVANCED SERVICES > Stateful Firewall > Global Setting page.
2. Select the Jumbo frames processing checkbox to enable the jumbo frames support.
3. Enter the value of the MTU in the Jumbo MTU [1789-9216] bytes textbox.
4. Click Apply.
To enable jumbo frame support on a port:
1. Navigate to Configuration > NETWORK > Ports page.
2. Select the Enable Jumbo MTU checkbox to enable the jumbo frames support.
3. Click Apply.
To enable jumbo frame support on a port channel:
1. Navigate to the Configuration > NETWORK > Ports > Port-Channel page.
2. Select the Enable Jumbo MTU checkbox to enable the jumbo frames support.
3. Click Apply.
In the CLI
To enable the jumbo frame support globally and to configure the MTU value:
(host)(config)#firewall jumbo mtu <val>
You can configure the MTU value between 1,789-9,216. The default MTU value is 9,216.
To disable the jumbo frame support: