--- service: i.root-servers.net start-period: '2016-03-26T00:00:00Z' end-period: '2016-03-27T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4523188201 dns-udp-queries-received-ipv6: 395838941 dns-tcp-queries-received-ipv4: 21823347 dns-tcp-queries-received-ipv6: 769482 dns-udp-responses-sent-ipv4: 4393653886 dns-udp-responses-sent-ipv6: 406163825 dns-tcp-responses-sent-ipv4: 20031202 dns-tcp-responses-sent-ipv6: 774325