--- service: i.root-servers.net start-period: '2016-03-05T00:00:00Z' end-period: '2016-03-06T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4471401580 dns-udp-queries-received-ipv6: 397847101 dns-tcp-queries-received-ipv4: 17806001 dns-tcp-queries-received-ipv6: 1163304 dns-udp-responses-sent-ipv4: 4441214133 dns-udp-responses-sent-ipv6: 405580946 dns-tcp-responses-sent-ipv4: 17375738 dns-tcp-responses-sent-ipv6: 1164775