Tata - Airtel domestic peering IRR filtering and OpenDNS latency!

Anurag Bhatia
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 PING ( 56(84) bytes of data. 64 bytes from icmp_seq=1 ttl=51 time=103 ms 64 bytes from icmp_seq=2 ttl=51 time=103 ms 64 bytes from icmp_seq=3 ttl=51 time=103 ms 64 bytes from 208.

Bangladesh .bd TLD outage on 18th August 2016

Anurag Bhatia
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 @ ; <<>> DiG 9.10.4-P2 <<>> @ ;; 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.

UKNOF32 - Analysis of F-root placement using RIPE Atlas

Anurag Bhatia
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 announced (and anycasted) by AS3557 (ISC). This was presentation at UKNOF 32. Embedded presentation below (or click here to watch on YouTube directly)