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Resolve Issue #147: should clarify VLAN tagging requirement with or without VIRTIO_NET_F_CTRL_VLAN

Should the TC accept changes listed in the description to resolve issue 147, for inclusion in specification version(s) "virtio-v1.3-cs01", and future versions of the specification?

Please vote Yes if you agree with all of the following.
If you disagree, please vote No.
If you don't have an opinion, please vote Abstain.

I move that:
The TC agrees to resolve the following specification issue:
Issue #147: should clarify VLAN tagging requirement with or without VIRTIO_NET_F_CTRL_VLAN
The software virtio implementation in QEMU differentiates VLAN tagging
disposition subject to the presence of VIRTIO_NET_F_CTRL_VLAN feature:
- when VIRTIO_NET_F_CTRL_VLAN is negotiated, the device starts with
all VLANs filtered (meaning only untagged traffic can be received,
and traffic with VLAN tag will be dropped).
- when VIRTIO_NET_F_CTRL_VLAN is not negotiated, all traffic including
untagged and tagged can be received.

It is essential to capture this expectation in the spec. Otherwise live migraiton
between different virtio implemenations won't work, either from software to
vDPA, or cross different vDPA vendors.

See the discussion thread in:


The TC accepts the following proposed changes to the specification:

The TC agrees to include the above change(s) in specification version(s) "virtio-v1.3-cs01", and future versions of the


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 [ ]  Yes
 [ ]  No
 [ ]  Abstain
Opening:   Friday, 20 January 2023 @ 06:45 am EST
Closing:   Friday, 27 January 2023 @ 06:45 am EST
Group:   OASIS Virtual I/O Device (VIRTIO) TC
Ballot has closed.

Referenced Items
Name Type Date Action

Voting Details

Voting Summary

Options with highest number of votes are bold

Option # Votes % of Total
Yes 7 100%
No 0 0%
Abstain 1
Eligible members who have voted: 7 of 8 88%
Eligible members who have abstained: 1 of 8 13%
Eligible members who have not voted: 0 of 8 0%

Voting Details

Voter Company VoteReference Document and/or Comment
Enrico Granata
Google Inc.
Halil Pasic
Matti Moell
OpenSynergy GmbH
Mihai Carabas
Michael S. Tsirkin
Red Hat
Stefan Hajnoczi
Red Hat
Cornelia Huck
Red Hat
Jan Kiszka
Siemens AG