--- service: i.root-servers.net start-period: '2014-04-14T00:00:00Z' end-period: '2014-04-15T00:00:22Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2753501405 dns-udp-queries-received-ipv6: 174434097 dns-tcp-queries-received-ipv4: 6005043 dns-tcp-queries-received-ipv6: 258102 dns-udp-responses-sent-ipv4: 2698869516 dns-udp-responses-sent-ipv6: 174301802 dns-tcp-responses-sent-ipv4: 5957703 dns-tcp-responses-sent-ipv6: 259729