--- service: i.root-servers.net start-period: '2013-05-26T00:00:00Z' end-period: '2013-05-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1807193663 dns-udp-queries-received-ipv6: 95636362 dns-tcp-queries-received-ipv4: 3016445 dns-tcp-queries-received-ipv6: 131344 dns-udp-responses-sent-ipv4: 1808552687 dns-udp-responses-sent-ipv6: 102649054 dns-tcp-responses-sent-ipv4: 3224293 dns-tcp-responses-sent-ipv6: 132334