--- service: i.root-servers.net start-period: '2015-10-10T00:00:00Z' end-period: '2015-10-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3992346543 dns-udp-queries-received-ipv6: 319293402 dns-tcp-queries-received-ipv4: 23541447 dns-tcp-queries-received-ipv6: 482352 dns-udp-responses-sent-ipv4: 3927869507 dns-udp-responses-sent-ipv6: 319290104 dns-tcp-responses-sent-ipv4: 23546698 dns-tcp-responses-sent-ipv6: 488934