--- service: i.root-servers.net start-period: '2015-10-05T00:00:00Z' end-period: '2015-10-06T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4198698225 dns-udp-queries-received-ipv6: 329165875 dns-tcp-queries-received-ipv4: 28472435 dns-tcp-queries-received-ipv6: 439429 dns-udp-responses-sent-ipv4: 4129680583 dns-udp-responses-sent-ipv6: 327754526 dns-tcp-responses-sent-ipv4: 28451803 dns-tcp-responses-sent-ipv6: 443112