--- service: i.root-servers.net start-period: '2014-05-01T00:00:00Z' end-period: '2014-05-02T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2582965897 dns-udp-queries-received-ipv6: 178586168 dns-tcp-queries-received-ipv4: 5254273 dns-tcp-queries-received-ipv6: 244230 dns-udp-responses-sent-ipv4: 2531303639 dns-udp-responses-sent-ipv6: 181652298 dns-tcp-responses-sent-ipv4: 5259671 dns-tcp-responses-sent-ipv6: 244067