[lir-wg] Discussion about RIPE-261

Hi,

On Wed, May 28, 2003 at 10:45:44AM +0100, Carlos Morgado wrote:
> On Tue, May 27, 2003 at 09:07:05PM +0200, Gert Doering wrote:
> 
> > The *benefit* of "/48 multihoming" is that you can filter those routes
> > if you don't want to see them - then your routers will send packets
> > down the /32 road, and eventually hit a router that knows about the /48
> 
> This is exactly why providers will have an hard time selling this to
> customers. 'It may work, it might not, depends, you have no control and
> neither do we'.

One of us us confused about this, and it's not me.

A /48 from an aggregate is MUCH MORE reliable than a /48 that has no 
fallback aggregate.  If the latter is filtered (or flap-dampened, or
"lost" due to bad as-path filters, or however), you're dead.  If the
former is lost, you can always send packets in the direction of the
aggregate, and at a certain proximity, the /48 will be visible again
and be used for proper packet delivery.

Besides this, I hope you're not selling *any* service related to Internet
connectivity to your customers with the claim that you have any control
about things more than two AS hops away from your network...?  Because
you haven't.

Gert Doering
        -- NetMaster
-- 
Total number of prefixes smaller than registry allocations:  54837  (54495)

SpaceNet AG                 Mail: netmaster at Space.Net
Joseph-Dollinger-Bogen 14   Tel : +49-89-32356-0
80807 Muenchen              Fax : +49-89-32356-299