--- service: i.root-servers.net start-period: '2014-05-22T00:00:00Z' end-period: '2014-05-23T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2852445632 dns-udp-queries-received-ipv6: 235629418 dns-tcp-queries-received-ipv4: 6573898 dns-tcp-queries-received-ipv6: 224754 dns-udp-responses-sent-ipv4: 2793299675 dns-udp-responses-sent-ipv6: 235515705 dns-tcp-responses-sent-ipv4: 6769275 dns-tcp-responses-sent-ipv6: 228829