Re: [Xen-users] VLAN in a Pool

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sun, Apr 11, 2010 at 07:37:34PM -0700, Faraz Khan wrote:
>    I have a pool with two xen servers connected to the same switch.  At the
>    pool level I have created an external network named VLAN3 with a tag id of
>    3.  I have two Windows XP guest VMs running one on each host. I have
>    attached both VMs to VLAN3 on each server.  The problem is that both VMs
>    cannot see each other over this VLAN.  If  I move both to one host server,
>    then they do see each other.
> 
> 
> 
>    Why can't the VLAN span across a pool of servers.  Do I need some special
>    switch that can handle vlan tagged traffic?  I just have an old 10/100
>    NetGear ProSafe 16 (FS-116) switch.
> 
> 
> 
>    If my switch is capable of tagged traffic will the vlan work across the
>    pool?

Yeah, you need to have a VLAN capable physical switch, and you need to set up 
all the VLANS as tagged in the switch. So in this case you need to create a vlan
with id 3 in the switch, and configure it as tagged to all the xen-host ports.

-- Pasi


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