--- service: i.root-servers.net start-period: '2016-04-08T00:00:00Z' end-period: '2016-04-09T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5283431799 dns-udp-queries-received-ipv6: 414158599 dns-tcp-queries-received-ipv4: 39223555 dns-tcp-queries-received-ipv6: 832181 dns-udp-responses-sent-ipv4: 5196499967 dns-udp-responses-sent-ipv6: 413702428 dns-tcp-responses-sent-ipv4: 38375328 dns-tcp-responses-sent-ipv6: 838195