--- service: i.root-servers.net start-period: '2014-03-06T00:00:00Z' end-period: '2014-03-07T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2699982760 dns-udp-queries-received-ipv6: 180940066 dns-tcp-queries-received-ipv4: 5493840 dns-tcp-queries-received-ipv6: 303768 dns-udp-responses-sent-ipv4: 2642044850 dns-udp-responses-sent-ipv6: 181024903 dns-tcp-responses-sent-ipv4: 5520245 dns-tcp-responses-sent-ipv6: 307812