--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6204028101 dns-udp-queries-received-ipv6: 1212928536 dns-tcp-queries-received-ipv4: 187067885 dns-tcp-queries-received-ipv6: 32086563 dns-udp-responses-sent-ipv4: 6057638636 dns-udp-responses-sent-ipv6: 1212333407 dns-tcp-responses-sent-ipv4: 181851722 dns-tcp-responses-sent-ipv6: 32863879