--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6888105139 dns-udp-queries-received-ipv6: 1295959839 dns-tcp-queries-received-ipv4: 130691409 dns-tcp-queries-received-ipv6: 31041340 dns-udp-responses-sent-ipv4: 6908289987 dns-udp-responses-sent-ipv6: 1321087038 dns-tcp-responses-sent-ipv4: 125242570 dns-tcp-responses-sent-ipv6: 28836180