All things related to multicast

[Marshall Eubanks <>]

John;

   Wouldn't you recommend that the cookbook use static RP's ?
This is easy to do, pretty common,
and my presumption would be that a domain that
needed something like auto-rp with anycast would need more clue
than they can get from a cook-book.

Marshall

John Zwiebel wrote:

> On 9/4/02 9:38 AM, "Tim Ward" 
> <>
>  wrote:
>
>
> > Currently you have three options that I know of for RP:
> >
> > Auto-RP -- cisco specific requires PIM sparse-dense within a PIM domain
>
>   sparse-dense is not required if there is a "default" RP statically
>   configured on every router.
>
>
> > BSR -- not cisco specific allows for PIM sparse within a PIM domain
> > Anycast RP -- not cisco specific but requires MSDP between RPs
>
> "Anycast RP" isn't exactly an option.  What it is is a way of
>  splitting up the RP load.  Auto-RP and BSR can be used to
>  distribut that address to all routers in the network, but
>  few (if any) networks do this.  Rather a static RP is used.
>
> FWIW: only widely distributed networks (ie a tier-1 ISP) need
>  consider any-cast RP.  Because ISPs are concerned with reliability
>  over flexibility, they choose one IP address to handle -all-
>  multicast groups (also there's no advantage for scoping), that
>  address will still be valid for years, so there is no need to
>  consider the BSR or auto-rp and configuration of a static RP
>  makes a lot of sense.
>
> A widely disbursed enterprise -might- want to take advantage of
>  anycast-RP, but might find the flexibility of auto-RP/BSR is
>  also required.
>
> 90% of the folks reading this have little use for any of this info.
>
>   ;-)


--
                                 Regards
                                 Marshall Eubanks

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T.M. Eubanks
Multicast Technologies, Inc
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