--- service: i.root-servers.net start-period: '2016-02-02T00:00:00Z' end-period: '2016-02-03T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5276292170 dns-udp-queries-received-ipv6: 412903223 dns-tcp-queries-received-ipv4: 30827642 dns-tcp-queries-received-ipv6: 822575 dns-udp-responses-sent-ipv4: 5206046855 dns-udp-responses-sent-ipv6: 417068522 dns-tcp-responses-sent-ipv4: 30732358 dns-tcp-responses-sent-ipv6: 827576