--- service: i.root-servers.net start-period: '2013-08-26T00:00:00Z' end-period: '2013-08-27T00:00:08Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2209407659 dns-udp-queries-received-ipv6: 145866329 dns-tcp-queries-received-ipv4: 4727585 dns-tcp-queries-received-ipv6: 171117 dns-udp-responses-sent-ipv4: 2150803738 dns-udp-responses-sent-ipv6: 145831920 dns-tcp-responses-sent-ipv4: 4711171 dns-tcp-responses-sent-ipv6: 170430