--- service: i.root-servers.net start-period: '2014-02-15T00:00:00Z' end-period: '2014-02-16T00:01:47Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2277303486 dns-udp-queries-received-ipv6: 163082850 dns-tcp-queries-received-ipv4: 4723331 dns-tcp-queries-received-ipv6: 271339 dns-udp-responses-sent-ipv4: 2223340100 dns-udp-responses-sent-ipv6: 163151637 dns-tcp-responses-sent-ipv4: 4755976 dns-tcp-responses-sent-ipv6: 268594