--- service: i.root-servers.net start-period: '2015-03-10T00:00:00Z' end-period: '2015-03-11T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3645127537 dns-udp-queries-received-ipv6: 255273879 dns-tcp-queries-received-ipv4: 7167029 dns-tcp-queries-received-ipv6: 243467 dns-udp-responses-sent-ipv4: 3606430243 dns-udp-responses-sent-ipv6: 258843953 dns-tcp-responses-sent-ipv4: 7229154 dns-tcp-responses-sent-ipv6: 249682