--- service: i.root-servers.net start-period: '2013-11-04T00:00:00Z' end-period: '2013-11-05T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2137510501 dns-udp-queries-received-ipv6: 121576708 dns-tcp-queries-received-ipv4: 5006481 dns-tcp-queries-received-ipv6: 200341 dns-udp-responses-sent-ipv4: 2196377066 dns-udp-responses-sent-ipv6: 129233724 dns-tcp-responses-sent-ipv4: 5011709 dns-tcp-responses-sent-ipv6: 209454