--- service: i.root-servers.net start-period: '2013-08-08T00:00:00Z' end-period: '2013-08-09T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2217756686 dns-udp-queries-received-ipv6: 149830488 dns-tcp-queries-received-ipv4: 4817316 dns-tcp-queries-received-ipv6: 215903 dns-udp-responses-sent-ipv4: 2152862278 dns-udp-responses-sent-ipv6: 149799397 dns-tcp-responses-sent-ipv4: 4778656 dns-tcp-responses-sent-ipv6: 201590