--- service: i.root-servers.net start-period: '2013-10-10T00:00:00Z' end-period: '2013-10-11T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2407512935 dns-udp-queries-received-ipv6: 127302586 dns-tcp-queries-received-ipv4: 4144345 dns-tcp-queries-received-ipv6: 146090 dns-udp-responses-sent-ipv4: 2508107333 dns-udp-responses-sent-ipv6: 135543458 dns-tcp-responses-sent-ipv4: 4191912 dns-tcp-responses-sent-ipv6: 160665