--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5569490377 dns-udp-queries-received-ipv6: 1355479828 dns-tcp-queries-received-ipv4: 303026306 dns-tcp-queries-received-ipv6: 102526736 dns-udp-responses-sent-ipv4: 5529885554 dns-udp-responses-sent-ipv6: 1385106821 dns-tcp-responses-sent-ipv4: 291057795 dns-tcp-responses-sent-ipv6: 102759440