--- service: i.root-servers.net start-period: '2014-03-26T00:00:00Z' end-period: '2014-03-27T00:00:28Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3673072373 dns-udp-queries-received-ipv6: 215824146 dns-tcp-queries-received-ipv4: 8336768 dns-tcp-queries-received-ipv6: 392265 dns-udp-responses-sent-ipv4: 3611371154 dns-udp-responses-sent-ipv6: 215871358 dns-tcp-responses-sent-ipv4: 8244962 dns-tcp-responses-sent-ipv6: 391450