[dpdk-users] Set mtu value

[Victor Detoni]

Even using `ifconfig eth0 mtu 1000` it doesn't work. My dpdk api shows 1500
mtu value.

And when I try to use l3fwd api and settings --enable-jumbo --max-pkt-len
9000 for example, it doesn't work. it appears: Cause
rte_eth_tx_queue_setup: err-22, port=0

Any tips? I'm using Ubuntu 16.04 and VMXNET3.

thanks

On Mon, Aug 22, 2016 at 10:12 AM, Victor Detoni <victordetoni at gmail.com>
wrote:

> Stephen, thank you for your answer.
>
> When you say "stop the device, configure new settings, and start", you
> mean use these functions rte_eth_dev_stop and rte_eth_dev_start?
>
> On Mon, Aug 22, 2016 at 2:27 AM, Stephen Hemminger <
> stephen at networkplumber.org> wrote:
>
>> only some device drivers support changing MTU via the change API.
>> For the rest the application has to stop the device, configure new
>> settings, and start.
>>
>
>