--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6449886920 dns-udp-queries-received-ipv6: 1324031049 dns-tcp-queries-received-ipv4: 149093085 dns-tcp-queries-received-ipv6: 32765973 dns-udp-responses-sent-ipv4: 6294691264 dns-udp-responses-sent-ipv6: 1310564728 dns-tcp-responses-sent-ipv4: 132886743 dns-tcp-responses-sent-ipv6: 29823019