When accessing APNIC web site, I noticed that HKIX has set up a mirror site for the f root name server (f.root-servers.net). This can dramatically boost the performance of root DNS service for Internt access in Hong Kong. The presence of the root mirror service can be detected by using a traceroute command as :
# traceroute f.root-servers.net
traceroute to f.root-servers.net (192.5.5.241), 30 hops max, 38 byte packets
1 kreisler.netfront.net (202.81.252.28) 1.156 ms 1.838 ms 2.693 ms
2 isc1-FE.hkix.net (202.40.161.202) 2.766 ms 2.235 ms 3.203 ms
3 f.root-servers.net (192.5.5.241) 2.879 ms 3.305 ms 3.336 ms
Yes, indeed, the next hop after HKIX is f.root-servers.net
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