--- service: i.root-servers.net start-period: '2016-05-24T00:00:00Z' end-period: '2016-05-25T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7029148553 dns-udp-queries-received-ipv6: 486005760 dns-tcp-queries-received-ipv4: 20376482 dns-tcp-queries-received-ipv6: 822972 dns-udp-responses-sent-ipv4: 6991353374 dns-udp-responses-sent-ipv6: 494202955 dns-tcp-responses-sent-ipv4: 20437611 dns-tcp-responses-sent-ipv6: 827892