--- service: i.root-servers.net start-period: '2015-06-25T00:00:00Z' end-period: '2015-06-26T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3681303093 dns-udp-queries-received-ipv6: 282453541 dns-tcp-queries-received-ipv4: 10140273 dns-tcp-queries-received-ipv6: 287980 dns-udp-responses-sent-ipv4: 3641891507 dns-udp-responses-sent-ipv6: 287542083 dns-tcp-responses-sent-ipv4: 9892178 dns-tcp-responses-sent-ipv6: 289027