[c-nsp] VPLS hub & spoke assistance

[Lobo]

Ahh I see, thanks for the examples Arie.  Makes sense now.

Jose

On 10/31/2014 7:09 PM, Arie Vayner (avayner) wrote:
> Jose,
>
> On the hub device you would have a VFI instance.
> The spokes would be configured just as if they were running a point to point xconnect (i.e. xconnect statement on the service-instace)
>
> On the hub, under the VFI, you need to configure your pseudowires as "neighbors" - this is where you would put the no-split-horizon statements for the spokes:
>
> l2 vfi aaa manual
>   vpn id 1
>   neighbor 1.1.1.1 encapsulation mpls no-split-horizon
>   neighbor 2.2.2.2 encapsulation mpls no-split-horizon
>
>
> HTH
> Arie
>
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Lobo
> Sent: Friday, October 31, 2014 11:44
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] VPLS hub & spoke assistance
>
> Hi everyone.  I'm trying to understand vpls with a hub & spoke topology a little better but I'm having a hard time grasping which site(s) need to have the no split-horizon configuration added to them.  Not sure if this is even possible with the autodiscovery option vs using manual.
>
> So right now I've got four sites setup in a full mesh with the following configuration on each PE router (ME3600X):
>
> l2 vfi TEST1 autodiscovery
>    vpn id 3000
> !
> interface GigabitEthernet0/4
>    service instance 3000 ethernet
>     encapsulation dot1q 3000
>     rewrite ingress tag pop 1 symmetric
>     bridge-domain 3000
>    !
> !
> interface Vlan3000
>    no ip address
>    xconnect vfi TEST1
> !
>
> So if I want sites 2, 3 and 4 to not be able to talk to each other except by going via site 1 what configuration change would I need to do?  I thought that adding "split horizon" to the bridge-domain under the service instance was the way to go but I'm not so sure.
>
> Ideally, I'd like a scenario where I can have one site as the hub and be able to take advantage of the autodiscovery for instances when a new spoke is added to the domain.  Granted only the hub is benefiting from this auto discovery but does that mean that the spokes should be configured as "manual"?
>
> Thanks for any suggestions.
>
> Jose
>
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