--- service: i.root-servers.net start-period: '2013-11-11T00:00:00Z' end-period: '2013-11-12T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2326127236 dns-udp-queries-received-ipv6: 124980168 dns-tcp-queries-received-ipv4: 4768866 dns-tcp-queries-received-ipv6: 225931 dns-udp-responses-sent-ipv4: 2403667702 dns-udp-responses-sent-ipv6: 137215422 dns-tcp-responses-sent-ipv4: 4772148 dns-tcp-responses-sent-ipv6: 234255