On Wed, Dec 19, 2012 at 10:48 AM, Vlad Yasevich [off-list ref] wrote:

This series of patches provides an ability to add VLANs to the bridge
ports.  This is similar to what can be found in most switches.  The bridge
port may have any number of VLANs added to it including vlan 0 priority tagged
traffic.  When vlans are added to the port, only traffic tagged with particular
vlan will forwarded over this port.  Additionally, vlan ids are added to FDB
entries and become part of the lookup.  This way we correctly identify the FDB
entry.

This is likely well beyond the scope of this change, but I figured I'd
throw out the question anyway.  This changeset looks to bring the
Linux bridging code closer to the 802.1Q-2005 definition of a bridge,
which is nice to see, I'm curious if this changeset also opens up the
possibility of supporting MSTP in the future?  The big thing I see
missing is per-VLAN port state, although I'm not very familiar with
the current STP/bridge interactions.  Has anyone put any thought into
what other necessary bridge pieces might be missing for MSTP support?
(specifically regarding bridge/vlan interaction, obviously something
to handle the MSTP protocol itself would need to exist as well)