--- service: i.root-servers.net start-period: '2013-11-01T00:00:00Z' end-period: '2013-11-02T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2094950336 dns-udp-queries-received-ipv6: 119892616 dns-tcp-queries-received-ipv4: 4491092 dns-tcp-queries-received-ipv6: 199799 dns-udp-responses-sent-ipv4: 2162114851 dns-udp-responses-sent-ipv6: 126915577 dns-tcp-responses-sent-ipv4: 4489694 dns-tcp-responses-sent-ipv6: 209004