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Re: ISP scenarios comments (multicast)
On Thu, 19 Sep 2002, Brian Haberman wrote:
> > For one perspective, look at one PIM-domain at:
> >
> > http://sem2.renater.fr/m6bone/
> >
> > Multicast works -- kinda.
>
> Yes, I have looked at their network before. Interesting. I am
> assuming that they are not using site-locals.
Yes, they're not using site-locals, but some parties would like to use
site-locals in addition to globals -- and that's impossible at the moment
with current implementations.
We use unicast prefix-based addresses there btw.
> > Which field? Destination address could include the address of the RP,
> > with some rather strict assumptions.
>
> I was talking about the prefix field in the multicast address. There
> are not enough bits to represent an RP unless you did some interesting
> address assignments for RPs and can encode the entire address in 64
> bits.
Both are doable. One idea I've been toying with is specifying some
default suffix values (for example), and including a 16-bit(?) hash of the
RP's full address to be able for the recipients to verify the guess.
--
Pekka Savola "Tell me of difficulties surmounted,
Netcore Oy not those you stumble over and fall"
Systems. Networks. Security. -- Robert Jordan: A Crown of Swords