--- service: i.root-servers.net start-period: '2013-08-02T00:00:00Z' end-period: '2013-08-03T00:02:23Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2170605033 dns-udp-queries-received-ipv6: 145265396 dns-tcp-queries-received-ipv4: 4619560 dns-tcp-queries-received-ipv6: 196090 dns-udp-responses-sent-ipv4: 2107812223 dns-udp-responses-sent-ipv6: 145233683 dns-tcp-responses-sent-ipv4: 4603189 dns-tcp-responses-sent-ipv6: 192127