--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5597691018 dns-udp-queries-received-ipv6: 853623178 dns-tcp-queries-received-ipv4: 119057305 dns-tcp-queries-received-ipv6: 16055187 dns-udp-responses-sent-ipv4: 5737911920 dns-udp-responses-sent-ipv6: 862719899 dns-tcp-responses-sent-ipv4: 116358263 dns-tcp-responses-sent-ipv6: 16012825