--- service: i.root-servers.net start-period: '2015-08-04T00:00:00Z' end-period: '2015-08-05T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5471608895 dns-udp-queries-received-ipv6: 269511914 dns-tcp-queries-received-ipv4: 13160479 dns-tcp-queries-received-ipv6: 310199 dns-udp-responses-sent-ipv4: 5425825109 dns-udp-responses-sent-ipv6: 271941053 dns-tcp-responses-sent-ipv4: 13050917 dns-tcp-responses-sent-ipv6: 316306