Interesting ASN usage data point

Interested data point

23707
23708
23709
23710 APNIC ASN's
23711
23712
23713

25572 RIPE ASN's

27318
27319
27320 ARIN ASN's
27321
27322

30122
30123
30124
30124
30124
30124
30124 ARIN ASN's
30124
30130
30131
30132
30133
30134

Those ASNs have all been assigned by the respective RIR (and LIR, in one case) to ISC for use as part of ISC's ongoing effort to distribute the F root nameserver globally.

Each of the anycast instances of F is designed to be autonomous and not directly connected to (or dependant on) the rest of ISC's network infrastructure. Each anycast node is deployed with a globally unique ASN.

Nodes in the Asia Pacific region have been deployed with ASNs obtained from APNIC (ISC is an APNIC member). Nodes in other regions have been obtained from ARIN (ISC is an ARIN member). 25572 corresponds to the F root anycast node in Madrid, which was the first local node we deployed. Our RIR strategy has been clarified since we rolled out that node.

I would be very happy to discuss the background for this design if others are interested. There are some notes available in the following document:

   http://www.isc.org/tn/isc-tn-2003-1.html

I'm currently in the bar if anybody at the meeting wants to learn more. I'm close to the epicentre of the long-range laser light show being put on by Avi (roll up! roll up! tour groups depart on the half hour! etc).

Joe