--- service: i.root-servers.net start-period: '2015-08-24T00:00:00Z' end-period: '2015-08-25T00:00:06Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3752190237 dns-udp-queries-received-ipv6: 274194523 dns-tcp-queries-received-ipv4: 29632964 dns-tcp-queries-received-ipv6: 379206 dns-udp-responses-sent-ipv4: 5316745386 dns-udp-responses-sent-ipv6: 274212042 dns-tcp-responses-sent-ipv4: 29693466 dns-tcp-responses-sent-ipv6: 382243