--- version: rssac002v3 service: i.root-servers.net start-period: '2016-06-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6142661138 dns-udp-queries-received-ipv6: 480830081 dns-tcp-queries-received-ipv4: 21585335 dns-tcp-queries-received-ipv6: 878630 dns-udp-responses-sent-ipv4: 6105123569 dns-udp-responses-sent-ipv6: 480531451 dns-tcp-responses-sent-ipv4: 21989265 dns-tcp-responses-sent-ipv6: 884461