--- service: i.root-servers.net start-period: '2014-03-23T00:00:00Z' end-period: '2014-03-24T00:00:26Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2348029821 dns-udp-queries-received-ipv6: 170148257 dns-tcp-queries-received-ipv4: 5582909 dns-tcp-queries-received-ipv6: 296929 dns-udp-responses-sent-ipv4: 2294825945 dns-udp-responses-sent-ipv6: 170085901 dns-tcp-responses-sent-ipv4: 5559713 dns-tcp-responses-sent-ipv6: 298743