--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 570448845 dns-udp-queries-received-ipv6: 183966790 dns-tcp-queries-received-ipv4: 7106347 dns-tcp-queries-received-ipv6: 941587 dns-udp-responses-sent-ipv4: 570147865 dns-udp-responses-sent-ipv6: 183522425 dns-tcp-responses-sent-ipv4: 6655619 dns-tcp-responses-sent-ipv6: 992558