--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5562530301 dns-udp-queries-received-ipv6: 791113121 dns-tcp-queries-received-ipv4: 135776938 dns-tcp-queries-received-ipv6: 19713327 dns-udp-responses-sent-ipv4: 5690113176 dns-udp-responses-sent-ipv6: 806205384 dns-tcp-responses-sent-ipv4: 133546982 dns-tcp-responses-sent-ipv6: 19733767