--- version: rssac002v3 service: a.root-servers.net start-period: '2021-09-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5410467548 dns-udp-queries-received-ipv6: 1417325251 dns-tcp-queries-received-ipv4: 304801764 dns-tcp-queries-received-ipv6: 161517013 dns-udp-responses-sent-ipv4: 5406099555 dns-udp-responses-sent-ipv6: 1448318049 dns-tcp-responses-sent-ipv4: 298491824 dns-tcp-responses-sent-ipv6: 168876251