North American Network Operators Group|
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Re: Policy Statement on Address Space Allocations
> > > Currently I have 2 choices as > > >far as I can make out, give them a bit of my /19, break up my > > >nice aggregate and ensure loads of extra announcements (and that > > >probably none of them get routed by anyone applying prefix based > > >filtering), or give them a new /19 all of their own (you've > > Suppose you have a customer that needs a /22 and they want to go > multi-homed. Suppose you give them that /22 out of your /19 or /16 you > got from the RIPE NCC. So they announce their /22 to you and to their > other provider. But you keep announcing your /19 or /16. So if anybody > were to filter the /22 announcement, your customer only suffers partial > loss of connectivity, since you are still announcing an aggregate of > their announcemnt (your original /19 or /16). > > Problem fixed. Anything else? ;-) Yes, if you go down, or their line goes down to you, their multi-homing is worthless. Dave -- Dave Siegel President, RTD Systems & Networking, Inc. (520)623-9663 Network Engineer -- Regional/National NSPs (Cisco) [email protected] User Tracking & Acctg -- "Written by an ISP, http://www.rtd.com/~dsiegel/ for an ISP."