--- service: i.root-servers.net start-period: '2014-03-15T00:00:00Z' end-period: '2014-03-16T00:00:07Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2301890147 dns-udp-queries-received-ipv6: 172201074 dns-tcp-queries-received-ipv4: 5282017 dns-tcp-queries-received-ipv6: 272893 dns-udp-responses-sent-ipv4: 2253272932 dns-udp-responses-sent-ipv6: 171942964 dns-tcp-responses-sent-ipv4: 5266897 dns-tcp-responses-sent-ipv6: 276615