--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5579709636 dns-udp-queries-received-ipv6: 1370423418 dns-tcp-queries-received-ipv4: 313299887 dns-tcp-queries-received-ipv6: 105547373 dns-udp-responses-sent-ipv4: 5587406806 dns-udp-responses-sent-ipv6: 1400028344 dns-tcp-responses-sent-ipv4: 301031365 dns-tcp-responses-sent-ipv6: 105614472