--- service: i.root-servers.net start-period: '2015-08-31T00:00:00Z' end-period: '2015-08-31T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3718262079 dns-udp-queries-received-ipv6: 262880547 dns-tcp-queries-received-ipv4: 28634203 dns-tcp-queries-received-ipv6: 421094 dns-udp-responses-sent-ipv4: 5281154705 dns-udp-responses-sent-ipv6: 262842340 dns-tcp-responses-sent-ipv4: 28664238 dns-tcp-responses-sent-ipv6: 423359