--- service: i.root-servers.net start-period: '2014-07-29T00:00:00Z' end-period: '2014-07-30T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3055515401 dns-udp-queries-received-ipv6: 244153885 dns-tcp-queries-received-ipv4: 6571649 dns-tcp-queries-received-ipv6: 273268 dns-udp-responses-sent-ipv4: 2998679628 dns-udp-responses-sent-ipv6: 243972175 dns-tcp-responses-sent-ipv4: 6695364 dns-tcp-responses-sent-ipv6: 276747