--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3306163578 dns-udp-queries-received-ipv6: 382583245 dns-tcp-queries-received-ipv4: 159724577 dns-tcp-queries-received-ipv6: 8561724 dns-udp-responses-sent-ipv4: 3305264510 dns-udp-responses-sent-ipv6: 382565980 dns-tcp-responses-sent-ipv4: 159635783 dns-tcp-responses-sent-ipv6: 8680841