--- version: rssac002v3 service: i.root-servers.net start-period: '2019-04-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7110645509 dns-udp-queries-received-ipv6: 1360104146 dns-tcp-queries-received-ipv4: 116126112 dns-tcp-queries-received-ipv6: 26105837 dns-udp-responses-sent-ipv4: 6940641337 dns-udp-responses-sent-ipv6: 1361951151 dns-tcp-responses-sent-ipv4: 112131077 dns-tcp-responses-sent-ipv6: 25279841