--- service: i.root-servers.net start-period: '2015-06-24T00:00:00Z' end-period: '2015-06-25T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3535844302 dns-udp-queries-received-ipv6: 278169060 dns-tcp-queries-received-ipv4: 10573489 dns-tcp-queries-received-ipv6: 265066 dns-udp-responses-sent-ipv4: 3496057957 dns-udp-responses-sent-ipv6: 282979615 dns-tcp-responses-sent-ipv4: 10474666 dns-tcp-responses-sent-ipv6: 265460