--- service: i.root-servers.net start-period: '2016-05-05T00:00:00Z' end-period: '2016-05-06T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5431676345 dns-udp-queries-received-ipv6: 437629309 dns-tcp-queries-received-ipv4: 34684277 dns-tcp-queries-received-ipv6: 944885 dns-udp-responses-sent-ipv4: 5371318054 dns-udp-responses-sent-ipv6: 442969496 dns-tcp-responses-sent-ipv4: 34377903 dns-tcp-responses-sent-ipv6: 948166