--- service: i.root-servers.net start-period: '2016-02-05T00:00:00Z' end-period: '2016-02-06T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4851844851 dns-udp-queries-received-ipv6: 381617814 dns-tcp-queries-received-ipv4: 26250796 dns-tcp-queries-received-ipv6: 850486 dns-udp-responses-sent-ipv4: 4784714811 dns-udp-responses-sent-ipv6: 387937086 dns-tcp-responses-sent-ipv4: 26271751 dns-tcp-responses-sent-ipv6: 854407