--- service: i.root-servers.net start-period: '2014-03-04T00:00:00Z' end-period: '2014-03-05T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2544372078 dns-udp-queries-received-ipv6: 175429645 dns-tcp-queries-received-ipv4: 3732835 dns-tcp-queries-received-ipv6: 316165 dns-udp-responses-sent-ipv4: 2488951066 dns-udp-responses-sent-ipv6: 175439534 dns-tcp-responses-sent-ipv4: 3727685 dns-tcp-responses-sent-ipv6: 319237