[ovs-discuss] Issue in added bridge in OVS-DPDK build

Daniele Di Proietto diproiettod at vmware.com
Tue Mar 17 12:51:21 UTC 2015

Hi Sharmila,

``ovs-vsctl add-br br5'' tells OVS to create a bridge that uses
a “system” dpif, i.e. a datapath created by the OVS linux kernel
module (not a userspace datapath, usable with DPDK devices).

The error in the log suggests that the OVS kernel module is not


> On 17 Mar 2015, at 12:28, Radhakrishnan, Sharmila <sharmila.radhakrishnan at intel.com> wrote:
> Hi All,
>    I have built OVS with DPDK(v1.7.1) as mentioned in the Install instructions.
> Iam able to add the bridge using command:
> ovs-vsctl add-br br2 -- set bridge br2 datapath_type=netdev
> However, when I ry to add the bridge like it is done in plain OVS, I get the following error.
> [root at localhost ~]# ovs-vsctl add-br br5
> ovs-vsctl: Error detected while setting up 'br5'.  See ovs-vswitchd log for details.
> This is the log:
> Mar 17 05:29:08 localhost ovs-vsctl: ovs|00001|vsctl|INFO|Called as ovs-vsctl add-br br5
> Mar 17 05:29:08 localhost ovs-vswitchd: ovs|00077|dpif|WARN|failed to enumerate system datapaths: No such file or directory
> Mar 17 05:29:08 localhost ovs-vswitchd: ovs|00078|dpif|WARN|failed to create datapath ovs-system: No such file or directory
> Mar 17 05:29:08 localhost ovs-vswitchd: ovs|00079|ofproto_dpif|ERR|failed to open datapath of type system: No such file or directory
> Is this not allowed or is this an issue?
> Thanks,
> Sharmila
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