--- service: i.root-servers.net start-period: '2015-10-22T00:00:00Z' end-period: '2015-10-23T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4800766287 dns-udp-queries-received-ipv6: 332664388 dns-tcp-queries-received-ipv4: 31616893 dns-tcp-queries-received-ipv6: 502412 dns-udp-responses-sent-ipv4: 4727720285 dns-udp-responses-sent-ipv6: 332612207 dns-tcp-responses-sent-ipv4: 31505039 dns-tcp-responses-sent-ipv6: 511923