--- service: i.root-servers.net start-period: '2016-04-05T00:00:00Z' end-period: '2016-04-06T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5288709788 dns-udp-queries-received-ipv6: 459820144 dns-tcp-queries-received-ipv4: 30845488 dns-tcp-queries-received-ipv6: 826881 dns-udp-responses-sent-ipv4: 5198258827 dns-udp-responses-sent-ipv6: 459340159 dns-tcp-responses-sent-ipv4: 29986855 dns-tcp-responses-sent-ipv6: 833879