--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4886818729 dns-udp-queries-received-ipv6: 1077468516 dns-tcp-queries-received-ipv4: 295618018 dns-tcp-queries-received-ipv6: 94057559 dns-udp-responses-sent-ipv4: 4887792544 dns-udp-responses-sent-ipv6: 1093682428 dns-tcp-responses-sent-ipv4: 285878874 dns-tcp-responses-sent-ipv6: 94184209