--- service: i.root-servers.net start-period: '2015-03-24T00:00:00Z' end-period: '2015-03-25T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3443261706 dns-udp-queries-received-ipv6: 252242305 dns-tcp-queries-received-ipv4: 8908677 dns-tcp-queries-received-ipv6: 263750 dns-udp-responses-sent-ipv4: 3391883031 dns-udp-responses-sent-ipv6: 255788186 dns-tcp-responses-sent-ipv4: 8953010 dns-tcp-responses-sent-ipv6: 269842