--- service: i.root-servers.net start-period: '2013-10-25T00:00:00Z' end-period: '2013-10-26T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2270252939 dns-udp-queries-received-ipv6: 122448008 dns-tcp-queries-received-ipv4: 4825053 dns-tcp-queries-received-ipv6: 197629 dns-udp-responses-sent-ipv4: 2354172952 dns-udp-responses-sent-ipv6: 129564524 dns-tcp-responses-sent-ipv4: 4845817 dns-tcp-responses-sent-ipv6: 204905