--- service: i.root-servers.net start-period: '2014-09-02T00:00:00Z' end-period: '2014-09-03T00:00:04Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3178093955 dns-udp-queries-received-ipv6: 225368384 dns-tcp-queries-received-ipv4: 8352970 dns-tcp-queries-received-ipv6: 256564 dns-udp-responses-sent-ipv4: 3118505934 dns-udp-responses-sent-ipv6: 229318074 dns-tcp-responses-sent-ipv4: 7822113 dns-tcp-responses-sent-ipv6: 255645