[dpdk-dev] In DPDK 1.7.1, the link status of the interface using virtio driver is always down.

[Ouyang, Changchun]

Hi,

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Fu, Weiyi (NSN -
> CN/Hangzhou)
> Sent: Thursday, December 11, 2014 3:57 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] In DPDK 1.7.1, the link status of the interface using virtio
> driver is always down.
> 
> Hi,
> We are using the l2fwd based on DPDK 1.7.1  and found out that the link
> status of the interface using virtio driver is always down.
> Is there any precondition to let the link up?
> 

Suggest you use testpmd to replace l2fwd, and virito need tx some packets before forwarding any packet. 
In testpmd, you can use the following cmd:
Start tx_first 

Thanks
Changchun