Source addresses and multicast (was Re: Fwd: Minutes / Notes)

[Pekka Nikander <pekka.nikander@nomadiclab.com>]

Erik,

Erik Nordmark wrote:
> For the source part (locator vs. id) we need to understand how multicast
> routing would work. Today it applies RPF to the source address and uses the
> hierarchical structure of the source address to aggregate the information used
> by the RPF. If the source identifiers are not aggregatable this will be an
> issue.
I have to admit my ignorance here.  Any pointers that would allow
me to better understand what you say above?  Especially, I don't
understand if the "source" address you talk about is the source
address in a packet, or the addresses (locators) of the members
of a multicast group.

--Pekka Nikander