--- service: i.root-servers.net start-period: '2014-11-23T00:00:00Z' end-period: '2014-11-24T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2765650809 dns-udp-queries-received-ipv6: 207119389 dns-tcp-queries-received-ipv4: 6341480 dns-tcp-queries-received-ipv6: 176833 dns-udp-responses-sent-ipv4: 2722693176 dns-udp-responses-sent-ipv6: 207049304 dns-tcp-responses-sent-ipv4: 6427543 dns-tcp-responses-sent-ipv6: 176848