--- service: i.root-servers.net start-period: '2014-12-26T00:00:00Z' end-period: '2014-12-27T00:00:08Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2831723932 dns-udp-queries-received-ipv6: 210789566 dns-tcp-queries-received-ipv4: 6577060 dns-tcp-queries-received-ipv6: 194711 dns-udp-responses-sent-ipv4: 2816460064 dns-udp-responses-sent-ipv6: 210762904 dns-tcp-responses-sent-ipv4: 6727655 dns-tcp-responses-sent-ipv6: 197607