--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 522429281 dns-udp-queries-received-ipv6: 169707529 dns-tcp-queries-received-ipv4: 5965861 dns-tcp-queries-received-ipv6: 949140 dns-udp-responses-sent-ipv4: 527033490 dns-udp-responses-sent-ipv6: 169215317 dns-tcp-responses-sent-ipv4: 5499005 dns-tcp-responses-sent-ipv6: 980288