[routing-wg]a (perhaps) naive question...

[Paul Francis francis@localhost]

I was wondering the other day why we don't do aggregating in BGP along the
lines of registry assignments.  For instance, what stops the set of ISPs
within Europe from from taking the 15 or 20 prefixes given to RIPE by IANA,
and collectively aggregating those prefixes when advertising to non-RIPE
ISPs?  It seems to me that they could advertise all of their AS#'s as a huge
AS-set for these prefixes.

Is there a technical issue that prevents this, or does the organizational
effort needed simply outweigh the benefit that would accrue?

PF