--- version: rssac002v3 service: i.root-servers.net start-period: '2019-04-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6653301205 dns-udp-queries-received-ipv6: 1188680721 dns-tcp-queries-received-ipv4: 124682390 dns-tcp-queries-received-ipv6: 35380111 dns-udp-responses-sent-ipv4: 6545209132 dns-udp-responses-sent-ipv6: 1207986170 dns-tcp-responses-sent-ipv4: 119983620 dns-tcp-responses-sent-ipv6: 33446021