--- service: i.root-servers.net start-period: '2014-04-10T00:00:00Z' end-period: '2014-04-11T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3088875977 dns-udp-queries-received-ipv6: 192599227 dns-tcp-queries-received-ipv4: 6952834 dns-tcp-queries-received-ipv6: 280110 dns-udp-responses-sent-ipv4: 3026529559 dns-udp-responses-sent-ipv6: 193079832 dns-tcp-responses-sent-ipv4: 6929709 dns-tcp-responses-sent-ipv6: 281436