[j-nsp] Limit content of bgp.l3vpn.0

[Olivier Benghozi]

It just does.

> On 28 sept. 2016 at 18:49, Johan Borch <johan.borch at gmail.com> wrote :
> 
> I don't have a route-reflector, this is a full iBGP mesh, will family
> route-target still work?
> 
> On Wed, Sep 28, 2016 at 4:27 PM, Dragan Jovicic <draganj84 at gmail.com> wrote:
> 
>> By default route-reflector will reflect/refresh all vpn routes to a PE
>> router, even if PE doesn't need those routes (doesn't import target
>> community).
>> Route-target family allows PE to give route-reflector a permission to send
>> only those routes for which import target exists.
>> The fact that this family works across all other vpn families (l2vpn,
>> inet-vpn, inet6-vpn, etc) make this almost a necessity in large networks.