Last month I noticed quite high latency with Cisco’s OpenDNS from my home fibre connection. The provider at home is IAXN (AS134316) which is peering with content folks in Delhi besides transit from Airtel. ping -c 5 188.8.131.52 PING 184.108.40.206 (220.127.116.11) 56(84) bytes of data. 64 bytes from 18.104.22.168: icmp_seq=1 ttl=51 time=103 ms 64 bytes from 22.214.171.124: icmp_seq=2 ttl=51 time=103 ms 64 bytes from 126.96.36.199: icmp_seq=3 ttl=51 time=103 ms 64 bytes from 208.
Day before yesterday i.e on 18th August 2016 Bangladesh’s TLD .bd went had an outage. It was originally reported by Jasim Alam on bdNOG mailing list. dig btcl.com.bd @188.8.131.52 ; <<>> DiG 9.10.4-P2 <<>> btcl.com.bd @184.108.40.206 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 8114 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;btcl.
I just presented data on Performance of Root DNS anycast in UK & Ireland at INEX meeting.
Enjoyed ISC’s presentation about their analysis of F root server (one 13 root DNS servers which power the Internet) about anycast performance gloablly for 220.127.116.11/24 announced (and anycasted) by AS3557 (ISC). This was presentation at UKNOF 32. Embedded presentation below (or click here to watch on YouTube directly)