--- service: i.root-servers.net start-period: '2015-02-02T00:00:00Z' end-period: '2015-02-03T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3237177417 dns-udp-queries-received-ipv6: 244520807 dns-tcp-queries-received-ipv4: 7069319 dns-tcp-queries-received-ipv6: 193688 dns-udp-responses-sent-ipv4: 3189244003 dns-udp-responses-sent-ipv6: 244437796 dns-tcp-responses-sent-ipv4: 7104360 dns-tcp-responses-sent-ipv6: 200267