[ovs-discuss] Behaviour of OVS for VLAN id 0.

Aimal Khan aimal.khan at xflowresearch.com
Thu Nov 17 07:17:22 UTC 2011


On Thu, Nov 17, 2011 at 11:49 AM, Ben Pfaff <blp at nicira.com> wrote:

> On Thu, Nov 17, 2011 at 11:49:33AM +0500, Aimal Khan wrote:
> > I am having some issues in understanding how OVS deals with VLAN id = 0.
> > (Using ovs v1.2.0 and NOX).
> >
> > For example: I have the following flow in the switch:
> >
> > cookie=0x0, duration=7.931s, table=0, n_packets=0, n_bytes=0,
> > dl_vlan=0,dl_vlan_pcp=0 actions=output:3
> > (only VLAN and VLAN priority are set.)
> >
> > What values of *vlan id* and *vlan pcp* of an inbound packet will allow
> it
> > to match successfully with the flow given above?
> > I have tried tagged (vlan id = 0 and vlan pcp = 0) and untagged packets;
> > the packets were NOT successfully matching the flow described above.
>
> This flow should match a packet tagged with vlan id 0, vlan pcp 0.
>

That was my first guess as well but I have tested it with packets having *vlan
id*=0 and *vlan pcp*=0 (several times actually) and I am unable to get this
result.

Regards,
Khan
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