--- service: i.root-servers.net start-period: '2013-08-24T00:00:00Z' end-period: '2013-08-25T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1910117196 dns-udp-queries-received-ipv6: 134504452 dns-tcp-queries-received-ipv4: 4185196 dns-tcp-queries-received-ipv6: 148577 dns-udp-responses-sent-ipv4: 1875175930 dns-udp-responses-sent-ipv6: 134477985 dns-tcp-responses-sent-ipv4: 4177345 dns-tcp-responses-sent-ipv6: 148031