--- service: i.root-servers.net start-period: '2014-08-10T00:00:00Z' end-period: '2014-08-11T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3293238691 dns-udp-queries-received-ipv6: 223362312 dns-tcp-queries-received-ipv4: 9204890 dns-tcp-queries-received-ipv6: 285968 dns-udp-responses-sent-ipv4: 3243808455 dns-udp-responses-sent-ipv6: 223767267 dns-tcp-responses-sent-ipv4: 8304578 dns-tcp-responses-sent-ipv6: 288409