--- service: i.root-servers.net start-period: '2013-11-15T00:00:00Z' end-period: '2013-11-16T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2343685982 dns-udp-queries-received-ipv6: 122939204 dns-tcp-queries-received-ipv4: 4543354 dns-tcp-queries-received-ipv6: 234615 dns-udp-responses-sent-ipv4: 2420603350 dns-udp-responses-sent-ipv6: 134158087 dns-tcp-responses-sent-ipv4: 4557134 dns-tcp-responses-sent-ipv6: 243136