All things related to multicast

[Bruce Curtis <>]

On Feb 1, 2008, at 1:15 PM, David Farmer wrote:
> The easiest way to think about it is; think of your blue and red  
> VRFs as
> completely separate networks made up of separate routers.  If you  
> want to
> connect the blue and red networks to each other and the Internet  
> you need
> to add a separate external router.   This router is a CE to both  
> the blue and
> red networks.  Further, this CE router needs to be the route to the  
> Internet
> for the red and blue networks, and the route between them.   
> Because, with
> VRFs you don't have separate unicast and multicast tables you need  
> to use
> the Unicast table for your Multicast, at least for now, this may  
> change in the
> future.

  On Junipers with instance-type vrf, you can have a separate  
multicast table instance-name.inet.2.  But for RFP checks to work you  
may need to do some fancy cross-populating of the main and instance  
inet.2 tables.

---
Bruce Curtis                         

Certified NetAnalyst II                701-231-8527
North Dakota State University