[ovs-discuss] Cannot match correct ethertype after POP vlan and GOTO table

Eric Garver e at erig.me
Tue Jul 18 16:56:55 UTC 2017

On Tue, Jul 04, 2017 at 03:27:50PM +0800, Dickens Yeh wrote:
> Hi,
> I have an question, and I haven't found any OpenFlow Spec to defined it ,
> please give me a help.
> I am trying to work with 3 vlan tags, but it cannot match correct ethertype
> after pop 1 vlan tag.
> OVS Bridge already set with vlan-limit = 0, and it can watch over 2 vlan
> and match the correct ethertype like ARP.
> My question is:  the packet have 3 vlan tags, pop 1 vlan tag and goto-table
> 1. In table 1, will it match with the new packet (modified) or the original
> packet like in table 0?

Original packet as in table 0. dl_type would be the 3rd VLAN tag in the
packet. goto_table does not cause the packet to be reparsed. Currently
OVS supports/parses 2 VLAN tags.

> Thanks for answering my question.
> best wishes,
> Dickens Yeh

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