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

[Johan Borch]

Hi

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:

> Hi,
>
> 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.
>
> BR,
>
> Dragan
>
> On Wed, Sep 28, 2016 at 4:05 PM, Dan Peachey <dan at peachey.co> wrote:
>
> > On 28 September 2016 at 14:47, Saku Ytti <saku at ytti.fi> wrote:
> > > On 28 September 2016 at 16:38, Johan Borch <johan.borch at gmail.com>
> > wrote:
> > >
> > >> Will router-target-family work even if it is cisco in one end?
> > >
> > > Yes, IOS supports route-target SAFI.
> > >
> > > --
> > >   ++ytti
> >
> >
> > Hi,
> >
> > I may be missing something, but shouldn't the default behaviour be to
> > drop all VPN routes that are not locally imported into a VRF? Unless
> > you configure "keep all" or the PE is also configured as an RR.
> >
> > A quick test on a PE not running as an RR:
> >
> > Before "keep all" configured on the BGP group:
> >
> > --
> > admin at lab1> show route table bgp.l3vpn.0
> >
> > bgp.l3vpn.0: 37 destinations, 37 routes (37 active, 0 holddown, 0 hidden)
> > --
> >
> > After "keep all" configued on the BGP group:
> >
> > --
> > admin at lab1> show route table bgp.l3vpn.0
> >
> > bgp.l3vpn.0: 165562 destinations, 165562 routes (165562 active, 0
> > holddown, 0 hidden)
> > --
> >
> > Cheers,
> >
> > Dan
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