--- service: i.root-servers.net start-period: '2015-08-25T00:00:00Z' end-period: '2015-08-26T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3809396738 dns-udp-queries-received-ipv6: 270511075 dns-tcp-queries-received-ipv4: 30411063 dns-tcp-queries-received-ipv6: 350276 dns-udp-responses-sent-ipv4: 5371800853 dns-udp-responses-sent-ipv6: 270516063 dns-tcp-responses-sent-ipv4: 30476490 dns-tcp-responses-sent-ipv6: 354712