--- service: i.root-servers.net start-period: '2014-06-13T00:00:00Z' end-period: '2014-06-14T00:00:04Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2662079111 dns-udp-queries-received-ipv6: 241275749 dns-tcp-queries-received-ipv4: 6744721 dns-tcp-queries-received-ipv6: 257876 dns-udp-responses-sent-ipv4: 2607400045 dns-udp-responses-sent-ipv6: 243251744 dns-tcp-responses-sent-ipv4: 6971906 dns-tcp-responses-sent-ipv6: 257726