--- service: i.root-servers.net start-period: '2013-11-14T00:00:00Z' end-period: '2013-11-15T00:00:15Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2392150624 dns-udp-queries-received-ipv6: 128015112 dns-tcp-queries-received-ipv4: 4986290 dns-tcp-queries-received-ipv6: 241791 dns-udp-responses-sent-ipv4: 2467225978 dns-udp-responses-sent-ipv6: 141040826 dns-tcp-responses-sent-ipv4: 5007094 dns-tcp-responses-sent-ipv6: 251003