--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1683561141 dns-udp-queries-received-ipv6: 457816975 dns-tcp-queries-received-ipv4: 19323512 dns-tcp-queries-received-ipv6: 4592897 dns-udp-responses-sent-ipv4: 1664910886 dns-udp-responses-sent-ipv6: 456071109 dns-tcp-responses-sent-ipv4: 17960851 dns-tcp-responses-sent-ipv6: 4256638