On Tue, May 05, 2015 at 04:30:09PM +0200, David Lamparter wrote:
> Receiving the R bit set means that you shouldn't wait for any EoRs from
> that router, not that updates must be sent immediately or anything.  It
> simply excludes the session from the set of sessions for which the
> set-and "all done" is evaluated.
[...]
> (In fact, the R bit is redundant - you could as well just send EoRs
> directly first thing, and it'd have the same effect.)

More concisely, setting the R bit outside of the deferred-selection
period during startup is never useful.  It means "don't wait for me, I'm
still getting my own selection in order".  It's a shortcut for "EoR on
all AFIs/SAFIs".

As soon as we're not in the deferred-selection period, we know when to
send the AFI/SAFI EoR, and should do exactly that.  That means R=0.

And routers that don't implement a deferred-selection period would
always send R=0.


-David

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