--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 576229059 dns-udp-queries-received-ipv6: 182439117 dns-tcp-queries-received-ipv4: 6531417 dns-tcp-queries-received-ipv6: 987064 dns-udp-responses-sent-ipv4: 576268574 dns-udp-responses-sent-ipv6: 181948656 dns-tcp-responses-sent-ipv4: 6116865 dns-tcp-responses-sent-ipv6: 1016473