--- service: i.root-servers.net start-period: '2013-11-10T00:00:00Z' end-period: '2013-11-11T00:00:02Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1997769967 dns-udp-queries-received-ipv6: 114407629 dns-tcp-queries-received-ipv4: 4435420 dns-tcp-queries-received-ipv6: 214120 dns-udp-responses-sent-ipv4: 2059546509 dns-udp-responses-sent-ipv6: 125078276 dns-tcp-responses-sent-ipv4: 4436896 dns-tcp-responses-sent-ipv6: 222334