[address-policy-wg] 2006-05 New Policy Proposal (PI Assignment Size)

On Wed, Sep 20, 2006 at 06:03:09PM +0000, Max Tulyev wrote:
> Gennady Abramov wrote:
> > And, don't forget that you even can do multihoming without PI address
> > space, by multihoming of PA assigment (if LIR permitted it).
> 
> Multihoming, but not backups. Because of some traffic will flow through
> [aggregated] LIR route if even link with LIR will be damaged.
It is very some traffic.
Some traffic flows on default gateway, even if you have BGP full view on
the router... :)
Normally, longest prefix has highest priority. If your 
multihomed prefix doesn't exist in some part of Internet, you may have
troubles with connectivity with this part of Internet, don't looking PA
or PI addresses you uses.
In the case of PA specific, traffic from this part of Internet will flow
to aggregated route, and, if specific route would be found on next hops,
will go to specific route from this next hops.
In the case of PI, traffic will flow to default or will be dropped.
Anyway, if your prefix doesn't routed anywhere, it isn't normal
situation, don't depend of addresses u use.



--
Regards,                                                                        
Gennady Abramov, CCNP, AGV77-RIPE                                               
Demos-Internet NOC                                                              
Phone: +7 (495) 737-0436                                                        
http://www.demos.ru/address