--- service: i.root-servers.net start-period: '2015-03-01T00:00:00Z' end-period: '2015-03-02T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2872224984 dns-udp-queries-received-ipv6: 236570465 dns-tcp-queries-received-ipv4: 6777110 dns-tcp-queries-received-ipv6: 207811 dns-udp-responses-sent-ipv4: 2829578642 dns-udp-responses-sent-ipv6: 236540552 dns-tcp-responses-sent-ipv4: 6825670 dns-tcp-responses-sent-ipv6: 214081