--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6937924111 dns-udp-queries-received-ipv6: 1314249389 dns-tcp-queries-received-ipv4: 130577780 dns-tcp-queries-received-ipv6: 24351754 dns-udp-responses-sent-ipv4: 6799080219 dns-udp-responses-sent-ipv6: 1318118136 dns-tcp-responses-sent-ipv4: 125601502 dns-tcp-responses-sent-ipv6: 23604224