--- service: i.root-servers.net start-period: '2014-10-02T00:00:00Z' end-period: '2014-10-03T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3113608987 dns-udp-queries-received-ipv6: 219384536 dns-tcp-queries-received-ipv4: 6710064 dns-tcp-queries-received-ipv6: 227987 dns-udp-responses-sent-ipv4: 3055595248 dns-udp-responses-sent-ipv6: 222872112 dns-tcp-responses-sent-ipv4: 6760638 dns-tcp-responses-sent-ipv6: 227032