--- version: rssac002v3 service: i.root-servers.net start-period: '2016-06-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5396295468 dns-udp-queries-received-ipv6: 470553508 dns-tcp-queries-received-ipv4: 18420331 dns-tcp-queries-received-ipv6: 808985 dns-udp-responses-sent-ipv4: 5364602763 dns-udp-responses-sent-ipv6: 469995611 dns-tcp-responses-sent-ipv4: 18727114 dns-tcp-responses-sent-ipv6: 806559