Bridge and VLAN trunk

[Gionatan Danti]

Il 2021-03-11 16:05 Laine Stump ha scritto:
> That's correct. Support was added to the Linux host-bridge device a
> few years ago for per-port VLAN tagging/filtering, but there hasn't
> been anyone sufficiently compelled (by their own needs or by their
> altruistic instincts) to support that. It likely would be fairly
> straightforward to do once someone dove into it - all the necessary
> config attributes are already there, so it would just involve
> recognizing and acting on them when a guest interface connected to a
> bridge that was a standard Linux host bridge (of course in reality
> there will likely be some unexpected incompatibility that will make it
> more difficult, but at least *in theory* it would be simple).

Thank you for the direct reply - very appreciated.

> So, if you can program in C and are willing to dig into the online
> docs for setting per-port attributes for Linux host bridges and
> implementing them (iirc via sending netlink messages) then feel free
> to start hacking, and check in on irc.oftc.net in the #virt channel if
> you have questions. Otherwise, I would recommend installing Open
> vSwitch. I don't have a link handy, but I've seen a few HOWTOs
> floating around, and followed one of them a few years ago to set it up
> on Fedora and RHEL test machines.

The last time I wrote something interesting in C was over 5 years ago, 
but I remember the basics. I'll surely give a look at the relevant 
source files.

Regarding OpenVSwitch, I looked at it some years ago but it was somewhat 
complicated for what I needed; so I decided to remain on classical linux 
bridges. This seems a good case to reconsider that decision, even if I 
would strongly prefer to continue using normal bridges.

Thanks.

-- 
Danti Gionatan
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