--- service: i.root-servers.net start-period: '2013-05-24T00:00:00Z' end-period: '2013-05-25T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2229659892 dns-udp-queries-received-ipv6: 107415506 dns-tcp-queries-received-ipv4: 3413540 dns-tcp-queries-received-ipv6: 132500 dns-udp-responses-sent-ipv4: 2228833579 dns-udp-responses-sent-ipv6: 114897025 dns-tcp-responses-sent-ipv4: 3608994 dns-tcp-responses-sent-ipv6: 132962