[c-nsp] auto-rp/bsr for external RPs

[Phil Mayers]

James Slepicka wrote:
> Hello all,
> 
> I'm receiving multicast data feeds from an external network running 
> PIM-SM.  RP info is not available via Auto-RP/BSR, so my edge router is 
> statically configured with the RP for the multicast groups.  This config 
> is repeated on all of my other multicast routers; how can I distribute 
> this RP info to my other internal routers using Auto-RP/BSR?  Using 'ip 
> pim send-rp-announce' or 'ip pim rp-candidate' doesn't work since my 
> router is not the RP for those groups.  PIM-DM is not an option here.  

It's probably not the answer you want to hear, but: don't. Run an RP for 
*all* groups on a router you control; statically configure all your 
other routers to point to that; and run MSDP between your RP and the 
upstream RP.

Trust me; it'll be better in the long run.