--- service: i.root-servers.net start-period: '2014-11-13T00:00:00Z' end-period: '2014-11-14T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3317757854 dns-udp-queries-received-ipv6: 224258868 dns-tcp-queries-received-ipv4: 6869408 dns-tcp-queries-received-ipv6: 184158 dns-udp-responses-sent-ipv4: 3263139201 dns-udp-responses-sent-ipv6: 224155220 dns-tcp-responses-sent-ipv4: 6997453 dns-tcp-responses-sent-ipv6: 183522