--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5774766893 dns-udp-queries-received-ipv6: 1312702170 dns-tcp-queries-received-ipv4: 329482511 dns-tcp-queries-received-ipv6: 100620040 dns-udp-responses-sent-ipv4: 5759587311 dns-udp-responses-sent-ipv6: 1340639420 dns-tcp-responses-sent-ipv4: 315393771 dns-tcp-responses-sent-ipv6: 100680925