[ovs-discuss] tag option for port and openflow dl_vlan filter

Gregory Rose gvrose8192 at gmail.com
Wed Mar 11 16:12:46 UTC 2020

On 3/9/2020 2:02 PM, George Shuklin wrote:
> Hello everyone.
> I found that if I create a port with tag (ovs-vsctl add-port br0 port0 
> tag=xx), than I can't match this port in openflow rules, e.g. rule 
> like this does not work:
> ovs-ofctl add-flow br0 "in_port=port0,dl_vlan=xx actions=DROP"
> I suspect that "tag" does not actually append vlan fields to the 
> packet. Am I right? If so, is there a way to force OVS to write this 
> bloody tag for real?


There are situations in which adding the tag isn't sufficient.  Here is 
the FAQ for VLANs in OVS.


I'm not sure of all your other network configurations so I can't be more 

- Greg

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