--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6992248593 dns-udp-queries-received-ipv6: 1349365562 dns-tcp-queries-received-ipv4: 145594302 dns-tcp-queries-received-ipv6: 34787284 dns-udp-responses-sent-ipv4: 6868522704 dns-udp-responses-sent-ipv6: 1364136734 dns-tcp-responses-sent-ipv4: 138851161 dns-tcp-responses-sent-ipv6: 31705124