--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 87293566 dns-udp-queries-received-ipv6: 18019420 dns-tcp-queries-received-ipv4: 1823318 dns-tcp-queries-received-ipv6: 43945 dns-udp-responses-sent-ipv4: 90762475 dns-udp-responses-sent-ipv6: 18019409 dns-tcp-responses-sent-ipv4: 1852386 dns-tcp-responses-sent-ipv6: 43997