--- service: i.root-servers.net start-period: '2016-01-26T00:00:00Z' end-period: '2016-01-27T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4765563930 dns-udp-queries-received-ipv6: 382243530 dns-tcp-queries-received-ipv4: 28583015 dns-tcp-queries-received-ipv6: 818063 dns-udp-responses-sent-ipv4: 4704004065 dns-udp-responses-sent-ipv6: 385924724 dns-tcp-responses-sent-ipv4: 28598411 dns-tcp-responses-sent-ipv6: 821257