--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6431608697 dns-udp-queries-received-ipv6: 1287166404 dns-tcp-queries-received-ipv4: 113730398 dns-tcp-queries-received-ipv6: 24065529 dns-udp-responses-sent-ipv4: 6371017295 dns-udp-responses-sent-ipv6: 1311681174 dns-tcp-responses-sent-ipv4: 110069563 dns-tcp-responses-sent-ipv6: 23533229