--- service: i.root-servers.net start-period: '2014-06-09T00:00:00Z' end-period: '2014-06-10T00:00:12Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2611797411 dns-udp-queries-received-ipv6: 238909238 dns-tcp-queries-received-ipv4: 6649651 dns-tcp-queries-received-ipv6: 235289 dns-udp-responses-sent-ipv4: 2554754913 dns-udp-responses-sent-ipv6: 238653389 dns-tcp-responses-sent-ipv4: 6883977 dns-tcp-responses-sent-ipv6: 238024