--- service: i.root-servers.net start-period: '2013-11-16T00:00:00Z' end-period: '2013-11-17T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2055273340 dns-udp-queries-received-ipv6: 113051888 dns-tcp-queries-received-ipv4: 4671209 dns-tcp-queries-received-ipv6: 233938 dns-udp-responses-sent-ipv4: 2115619013 dns-udp-responses-sent-ipv6: 122898741 dns-tcp-responses-sent-ipv4: 4687535 dns-tcp-responses-sent-ipv6: 242208