--- service: i.root-servers.net start-period: '2014-05-29T00:00:00Z' end-period: '2014-05-30T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2861465344 dns-udp-queries-received-ipv6: 252520950 dns-tcp-queries-received-ipv4: 6510042 dns-tcp-queries-received-ipv6: 237922 dns-udp-responses-sent-ipv4: 2800899591 dns-udp-responses-sent-ipv6: 252156602 dns-tcp-responses-sent-ipv4: 6698544 dns-tcp-responses-sent-ipv6: 240890