--- service: i.root-servers.net start-period: '2014-09-24T00:00:00Z' end-period: '2014-09-25T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3203847092 dns-udp-queries-received-ipv6: 217285451 dns-tcp-queries-received-ipv4: 6582580 dns-tcp-queries-received-ipv6: 162775 dns-udp-responses-sent-ipv4: 3144202521 dns-udp-responses-sent-ipv6: 221487382 dns-tcp-responses-sent-ipv4: 6816645 dns-tcp-responses-sent-ipv6: 163234