--- service: i.root-servers.net start-period: '2014-11-28T00:00:00Z' end-period: '2014-11-29T00:00:01Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3234718346 dns-udp-queries-received-ipv6: 220399122 dns-tcp-queries-received-ipv4: 6416594 dns-tcp-queries-received-ipv6: 182520 dns-udp-responses-sent-ipv4: 3185215019 dns-udp-responses-sent-ipv6: 220335638 dns-tcp-responses-sent-ipv4: 6481194 dns-tcp-responses-sent-ipv6: 181100