Contents

• Modify the Ethernet MTU configuration
  • Enter the following commands on the host:
  • Enter the following commands on the target:

Modify the Ethernet MTU configuration

Because the full-offload model adds additional headers to the packets that are sent across the GMAC link, the existing MTU must be increased. This increase is necessary in both the Ethernet switch and the Ethernet interface levels.

To change the Ethernet MTU settings on the host and target modules at the Ethernet switch level, insert the qca-ssdk.ko module if not previously inserted and then enter the command to set the frame size to 2048.

Enter the following commands on the host:

cd lib/modules/3.3.8; insmod qca-ssdk.ko; cd -
ssdk_sh misc framemaxSize set 2048
ssdk_sh misc framemaxSize get

Enter the following commands on the target:

swconfig dev switch0 set max_frame_size 2048
swconfig dev switch0 get max_frame_size. (The value should be >= 2048)

To change the Ethernet interface MTU settings on the host and target modules at the Ethernet interface level, enter the following commands:

ifconfig eth0 mtu 2048
ifconfig eth1 mtu 2048