--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5975875596 dns-udp-queries-received-ipv6: 1131608799 dns-tcp-queries-received-ipv4: 189114360 dns-tcp-queries-received-ipv6: 31167083 dns-udp-responses-sent-ipv4: 5837977922 dns-udp-responses-sent-ipv6: 1131176704 dns-tcp-responses-sent-ipv4: 183729284 dns-tcp-responses-sent-ipv6: 31893456