Re: [PATCH] [bridge] Add split horizon

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Benny Amorsen <benny+usenet@xxxxxxxxxx> wrote on 13/06/2009 17:12:25:
>
> lør, 13 06 2009 kl. 17:03 +0200, skrev Joakim Tjernlund:
> > Benny Amorsen <benny+usenet@xxxxxxxxxx> wrote on 13/06/2009 01:58:53:
> > >
> > > Joakim Tjernlund <Joakim.Tjernlund@xxxxxxxxxxxx> writes:
> > >
> > > > Currently the bridge does not impl. split horizon which will easily
> > > > cause loops when 2 or more VLANs are added from the same physical interface.
> > >
> > > Why would they cause loops? If your topology isn't loop free, run
> > > spanning tree in the VLAN's. Yet another thing most hardware switches
> > > can't do, incidentally.
> >
> > ehh, connect two Linux bridges that have 2 VLANs in common on the interswitch connection.
> > What happens?
>
> "If your topology isn't loop free, run spanning tree in the VLAN's."

That would just disable one of the VLANs so the bride won't receive
any more pkgs over that VLAN.

I would really like to read up on the claim that each VLAN is also a physical port.
Any pointers?

 Jocke

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