--- service: i.root-servers.net start-period: '2014-01-15T00:00:00Z' end-period: '2014-01-16T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2526732625 dns-udp-queries-received-ipv6: 151486931 dns-tcp-queries-received-ipv4: 5335010 dns-tcp-queries-received-ipv6: 253954 dns-udp-responses-sent-ipv4: 2469569562 dns-udp-responses-sent-ipv6: 151634599 dns-tcp-responses-sent-ipv4: 5353436 dns-tcp-responses-sent-ipv6: 257488