--- service: i.root-servers.net start-period: '2013-08-06T00:00:00Z' end-period: '2013-08-07T00:00:29Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2199515503 dns-udp-queries-received-ipv6: 151023419 dns-tcp-queries-received-ipv4: 5337218 dns-tcp-queries-received-ipv6: 205667 dns-udp-responses-sent-ipv4: 2135165628 dns-udp-responses-sent-ipv6: 150992109 dns-tcp-responses-sent-ipv4: 5054621 dns-tcp-responses-sent-ipv6: 201125