--- service: i.root-servers.net start-period: '2014-03-24T00:00:00Z' end-period: '2014-03-25T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2709662985 dns-udp-queries-received-ipv6: 178395472 dns-tcp-queries-received-ipv4: 6105867 dns-tcp-queries-received-ipv6: 316287 dns-udp-responses-sent-ipv4: 2653389103 dns-udp-responses-sent-ipv6: 178471124 dns-tcp-responses-sent-ipv4: 6060414 dns-tcp-responses-sent-ipv6: 318482