netdev - Re: [PATCH 00/11] Add basic VLAN support to bridges

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Message-Id: <20121213.152858.1666583339993031731.davem@davemloft.net>
Date:	Thu, 13 Dec 2012 15:28:58 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	vyasevic@...hat.com
Cc:	netdev@...r.kernel.org, shemminger@...tta.com, mst@...hat.com,
	john.r.fastabend@...el.com
Subject: Re: [PATCH 00/11] Add basic VLAN support to bridges

From: Vlad Yasevich <vyasevic@...hat.com>
Date: Wed, 12 Dec 2012 15:01:06 -0500

> 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.
> 
> A single vlan may also be designated as untagged.  Any untagged traffic
> recieved by the port will be assigned to this vlan.  Any traffic exiting
> the port with a VID matching the untagged vlan will exit untagged (the
> bridge will strip the vlan header).  This is similar to "Native Vlan" support
> available in most switches.
> 
> The default behavior ofthe bridge is unchanged if no vlans have been
> configured.

FWIW I've reviewed these changes and I like them a lot.

They resolve a real ambiguity, and using ebtables as a reason these
changes should not be applied amounts to a scarecrow.
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