--- service: i.root-servers.net start-period: '2016-03-23T00:00:00Z' end-period: '2016-03-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5391983316 dns-udp-queries-received-ipv6: 465204029 dns-tcp-queries-received-ipv4: 21845772 dns-tcp-queries-received-ipv6: 921897 dns-udp-responses-sent-ipv4: 5301218698 dns-udp-responses-sent-ipv6: 466553817 dns-tcp-responses-sent-ipv4: 21679329 dns-tcp-responses-sent-ipv6: 928156