--- version: rssac002v3 service: i.root-servers.net start-period: '2019-06-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 883787551 dns-udp-queries-received-ipv6: 255919985 dns-tcp-queries-received-ipv4: 11362360 dns-tcp-queries-received-ipv6: 2106334 dns-udp-responses-sent-ipv4: 891436273 dns-udp-responses-sent-ipv6: 257530462 dns-tcp-responses-sent-ipv4: 10896729 dns-tcp-responses-sent-ipv6: 2119326