[j-nsp] MVPN Interoperability Issue

John Frame jframe at juniper.net
Fri Oct 16 15:17:46 EDT 2009


Actually it is possible to support BGP-MVPNs over a non-P2MP capable  
core by using GRE tunnels.  Each PE would require a Tunnel PIC to  
support both the GRE requirement and the vt interface must be used in  
the routing instance - however if you are using MXs then it is built  
in already on the DPCs.  If Inclusive trees are used, then P2MP  
branches are built statically, but automatic trees can be built if  
using a Selective tree.

Cheers.

On Oct 16, 2009, at 11:53 AM, Harry Reynolds wrote:

> For draft rosen I would suggest gre rather than mpls p-2-mp. Not  
> sure that latter is even supported.
>
> There are a few other interop notes, but depends on if you plan  
> rosen6 or rosen7.
>
> In either case, you need to have a lo0.x with the same ip as the  
> main instance lo0 in each mvpn vrf. This is addresses with 10.0R2  
> rli 11113, but until then, this is how it is.
>
> For rosen7 you need ios that supports the inet-mdt bgp family, and  
> you must ensure those routes are tagged with the extended RT comm.  
> This too is addressed in 10.0R2, with rli 11114.
>
> HTHs
>
>
>
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp- 
> bounces at puck.nether.net] On Behalf Of Stefan Fouant
> Sent: Friday, October 16, 2009 10:47 AM
> To: Juniper List
> Subject: [j-nsp] MVPN Interoperability Issue
>
> Anyone on list have any success setting up Multicast over BGP-MPLS  
> VPNs in a heterogenous environment consisting of both Juniper and  
> Cisco routers?
> Basically, I've got Juniper MX running as PE router with Cisco 7600s  
> as P router.  I don't think Cisco supports NG-VPN yet, so I'm trying  
> to get draft-rosen running between the Juniper and the Cisco...   
> Doesn't appear that I can get p2mp tunnels signalled through the P  
> routers.  Not really trying to get hardcore troubleshooting  
> assistance but rather I'm just curious if anyone out there has  
> managed to get this working, and also any additional feedback you  
> might be able to provide.
>
> Thanks in advance,
>
> --
> Stefan Fouant
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