All things related to multicast

[Marshall Eubanks <>]

Have you talked to your vendor ? Are you aware of the two flavors of  
MPLS multicast ?

This draft might be useful if you are doing PIM MPLS Multicast :

http://merlot.tools.ietf.org/html/draft-ycai-mboned-mvpn-deploy-00

If it _is_ useful to you (or, even if it isn't), please let me know,  
as we still haven't decided whether or not
to make an official draft or not.

Regards
Marshall



On Feb 1, 2008, at 1:00 PM, debbie fligor wrote:

> We're doing some planning for our next-generation campus core  
> network.  We're planning on using VRFs to provide some specialty  
> services (like a high-speed research network that bypasses the exit  
> firewalls).
>
> Here's a very simplified version of what we're thinking it will  
> look like:
>
> <mcast-core6.jpg>
>
>
> and an ascii version for those that don't do inline jpegs:
>
> vrf blue net 3 --- (dist router) -- (core router) -- (dist router)  
> --- vrf blue net 4
>                    /                                      /
> vrf red net 1 ----/                         vrf red net 2/
>
>
> We want to be sure that Intra-VRF multicast (eg. from net 3 to net  
> 4, all in the "blue" vrf) will work if the links between the dist  
> routers and core routers are MPLS based.  We're confident we can  
> make it work if the links between the core and dist routers are L2  
> and we use VRF-lite, but we are interested in considering MPLS  
> instead.
>
> We're assuming we'll be able to make the Inter VRF multicast work,  
> even if it's a the other side of our exit, by treating them as L3  
> peerings.
>
>
> So if you've done something like this, how did you do it?  So far  
> it looks like we'd have to run BGP as a core routing protocol and  
> exchange NLRIs with MBGP, if that's even defined over MPLS (I don't  
> think the standard for that is done, info on that is also  
> appreciated). We're not sure BGP makes an ideal core routing  
> protocol for a campus.
>
> We're especially interested in hearing how you have made something  
> like this work (or not!) on Cisco 6500's and Juniper MX-480 or  
> MX-960.  Anything you've done with other vendor's gear that you  
> think might be insightful is also appreciated.
>
> thanks!
>
>
> -----
> -debbie
> Debbie Fligor, n9dn       Network Engineer, CITES, Univ. of Il
> email: 
>
>           <http://www.uiuc.edu/ph/www/fligor>
>                    "My turn."  -River Tam