--- service: i.root-servers.net start-period: '2014-01-26T00:00:00Z' end-period: '2014-01-27T00:00:12Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2100589406 dns-udp-queries-received-ipv6: 147397437 dns-tcp-queries-received-ipv4: 4959633 dns-tcp-queries-received-ipv6: 238740 dns-udp-responses-sent-ipv4: 2055682837 dns-udp-responses-sent-ipv6: 146769137 dns-tcp-responses-sent-ipv4: 4958645 dns-tcp-responses-sent-ipv6: 241957