--- service: i.root-servers.net start-period: '2014-11-11T00:00:00Z' end-period: '2014-11-12T00:00:15Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3340040406 dns-udp-queries-received-ipv6: 231434711 dns-tcp-queries-received-ipv4: 7124428 dns-tcp-queries-received-ipv6: 175347 dns-udp-responses-sent-ipv4: 3283473657 dns-udp-responses-sent-ipv6: 231355324 dns-tcp-responses-sent-ipv4: 7260638 dns-tcp-responses-sent-ipv6: 174335