--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3557501333 dns-udp-queries-received-ipv6: 355600196 dns-tcp-queries-received-ipv4: 158067575 dns-tcp-queries-received-ipv6: 7423800 dns-udp-responses-sent-ipv4: 3555555521 dns-udp-responses-sent-ipv6: 355559129 dns-tcp-responses-sent-ipv4: 158005616 dns-tcp-responses-sent-ipv6: 7546488