--- service: i.root-servers.net start-period: '2013-05-27T00:00:00Z' end-period: '2013-05-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2034669164 dns-udp-queries-received-ipv6: 105022073 dns-tcp-queries-received-ipv4: 3324255 dns-tcp-queries-received-ipv6: 140032 dns-udp-responses-sent-ipv4: 2037762528 dns-udp-responses-sent-ipv6: 112129577 dns-tcp-responses-sent-ipv4: 3665044 dns-tcp-responses-sent-ipv6: 140660