If_bridge and MST
tom at tomjudge.com
Mon Sep 3 13:46:44 PDT 2007
Andrew Thompson wrote:
> On Mon, Sep 03, 2007 at 02:11:59PM +0100, Tom Judge wrote:
>> I was wondering if if_bridge had been taught how to speak multiple
>> instance spanning tree?
> Not yet. I havnt started it yet and I do not know of anyone else working
> on it.
While playing with if_bridge today and a pair of Dell PowerConnect
5324's (with the recent upgrade to MSTP) I noticed that it did not seem
to be possible to enable STP on if_vlan bridge members. This would seem
to be correct as transmitting STP frames tagged with VLAN_ID would seem
to break the spec and fall into the realm of cisco PVST. However should
if_bridge be taught that the vlandev should be used for collection and
transmission spanning tree in this scenario or should if_vlan be taught
to copy untagged [R]STP frames onto the vlan interface?
More information about the freebsd-net