--- service: i.root-servers.net start-period: '2014-08-21T00:00:00Z' end-period: '2014-08-22T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2855449706 dns-udp-queries-received-ipv6: 213222324 dns-tcp-queries-received-ipv4: 7434294 dns-tcp-queries-received-ipv6: 261762 dns-udp-responses-sent-ipv4: 2800078194 dns-udp-responses-sent-ipv6: 213617354 dns-tcp-responses-sent-ipv4: 7025757 dns-tcp-responses-sent-ipv6: 263054