--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6792676720 dns-udp-queries-received-ipv6: 1209821085 dns-tcp-queries-received-ipv4: 134093334 dns-tcp-queries-received-ipv6: 30738745 dns-udp-responses-sent-ipv4: 6684975925 dns-udp-responses-sent-ipv6: 1239772267 dns-tcp-responses-sent-ipv4: 130020146 dns-tcp-responses-sent-ipv6: 29460412