--- service: i.root-servers.net start-period: '2013-11-24T00:00:00Z' end-period: '2013-11-25T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1958301666 dns-udp-queries-received-ipv6: 127555821 dns-tcp-queries-received-ipv4: 4592542 dns-tcp-queries-received-ipv6: 231983 dns-udp-responses-sent-ipv4: 2017485258 dns-udp-responses-sent-ipv6: 138187540 dns-tcp-responses-sent-ipv4: 4595693 dns-tcp-responses-sent-ipv6: 239701