--- service: i.root-servers.net start-period: '2015-03-14T00:00:00Z' end-period: '2015-03-15T00:00:05Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3085116602 dns-udp-queries-received-ipv6: 231131380 dns-tcp-queries-received-ipv4: 7299049 dns-tcp-queries-received-ipv6: 230801 dns-udp-responses-sent-ipv4: 3053451536 dns-udp-responses-sent-ipv6: 234378290 dns-tcp-responses-sent-ipv4: 7358702 dns-tcp-responses-sent-ipv6: 238927