--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3627167294 dns-udp-queries-received-ipv6: 409250750 dns-tcp-queries-received-ipv4: 173153781 dns-tcp-queries-received-ipv6: 7252427 dns-udp-responses-sent-ipv4: 3620307597 dns-udp-responses-sent-ipv6: 409153640 dns-tcp-responses-sent-ipv4: 173096362 dns-tcp-responses-sent-ipv6: 7350359