--- service: i.root-servers.net start-period: '2014-05-10T00:00:00Z' end-period: '2014-05-11T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2316973268 dns-udp-queries-received-ipv6: 174418046 dns-tcp-queries-received-ipv4: 6080517 dns-tcp-queries-received-ipv6: 229099 dns-udp-responses-sent-ipv4: 2268880665 dns-udp-responses-sent-ipv6: 177030663 dns-tcp-responses-sent-ipv4: 6123212 dns-tcp-responses-sent-ipv6: 231643