--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3838027447 dns-udp-queries-received-ipv6: 399584449 dns-tcp-queries-received-ipv4: 174580666 dns-tcp-queries-received-ipv6: 9452611 dns-udp-responses-sent-ipv4: 3836555534 dns-udp-responses-sent-ipv6: 399551450 dns-tcp-responses-sent-ipv4: 174846976 dns-tcp-responses-sent-ipv6: 9561620