--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3914186545 dns-udp-queries-received-ipv6: 408159917 dns-tcp-queries-received-ipv4: 174400760 dns-tcp-queries-received-ipv6: 11616772 dns-udp-responses-sent-ipv4: 3912981779 dns-udp-responses-sent-ipv6: 408143175 dns-tcp-responses-sent-ipv4: 174326460 dns-tcp-responses-sent-ipv6: 11717930