--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5440934023 dns-udp-queries-received-ipv6: 1267412584 dns-tcp-queries-received-ipv4: 311878738 dns-tcp-queries-received-ipv6: 101685304 dns-udp-responses-sent-ipv4: 5453859666 dns-udp-responses-sent-ipv6: 1298544412 dns-tcp-responses-sent-ipv4: 297494878 dns-tcp-responses-sent-ipv6: 101727953