--- service: i.root-servers.net start-period: '2014-11-29T00:00:00Z' end-period: '2014-11-30T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2762136643 dns-udp-queries-received-ipv6: 207116330 dns-tcp-queries-received-ipv4: 5812685 dns-tcp-queries-received-ipv6: 175402 dns-udp-responses-sent-ipv4: 2720165346 dns-udp-responses-sent-ipv6: 207060209 dns-tcp-responses-sent-ipv4: 5892937 dns-tcp-responses-sent-ipv6: 175048