--- service: i.root-servers.net start-period: '2014-04-03T00:00:00Z' end-period: '2014-04-04T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3001764148 dns-udp-queries-received-ipv6: 184146363 dns-tcp-queries-received-ipv4: 6347991 dns-tcp-queries-received-ipv6: 267538 dns-udp-responses-sent-ipv4: 2940748592 dns-udp-responses-sent-ipv6: 184331094 dns-tcp-responses-sent-ipv4: 6287063 dns-tcp-responses-sent-ipv6: 269419