--- service: i.root-servers.net start-period: '2014-07-12T00:00:00Z' end-period: '2014-07-13T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3005068949 dns-udp-queries-received-ipv6: 222975532 dns-tcp-queries-received-ipv4: 6506930 dns-tcp-queries-received-ipv6: 287192 dns-udp-responses-sent-ipv4: 2954602811 dns-udp-responses-sent-ipv6: 222836650 dns-tcp-responses-sent-ipv4: 6672898 dns-tcp-responses-sent-ipv6: 292921