--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3776407685 dns-udp-queries-received-ipv6: 370234670 dns-tcp-queries-received-ipv4: 144650454 dns-tcp-queries-received-ipv6: 8345304 dns-udp-responses-sent-ipv4: 3775293855 dns-udp-responses-sent-ipv6: 370189437 dns-tcp-responses-sent-ipv4: 144563022 dns-tcp-responses-sent-ipv6: 8457076