--- service: i.root-servers.net start-period: '2014-02-13T00:00:00Z' end-period: '2014-02-14T00:00:27Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2523973857 dns-udp-queries-received-ipv6: 168068024 dns-tcp-queries-received-ipv4: 5483549 dns-tcp-queries-received-ipv6: 299214 dns-udp-responses-sent-ipv4: 2465653360 dns-udp-responses-sent-ipv6: 168151146 dns-tcp-responses-sent-ipv4: 5512207 dns-tcp-responses-sent-ipv6: 300799