--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3716109021 dns-udp-queries-received-ipv6: 396585997 dns-tcp-queries-received-ipv4: 164159349 dns-tcp-queries-received-ipv6: 7346306 dns-udp-responses-sent-ipv4: 3710117985 dns-udp-responses-sent-ipv6: 396563798 dns-tcp-responses-sent-ipv4: 164363515 dns-tcp-responses-sent-ipv6: 7471948