--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 578815710 dns-udp-queries-received-ipv6: 183087282 dns-tcp-queries-received-ipv4: 7011984 dns-tcp-queries-received-ipv6: 1097744 dns-udp-responses-sent-ipv4: 583792483 dns-udp-responses-sent-ipv6: 182657857 dns-tcp-responses-sent-ipv4: 6537790 dns-tcp-responses-sent-ipv6: 1123188