--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3787347522 dns-udp-queries-received-ipv6: 432012787 dns-tcp-queries-received-ipv4: 167716230 dns-tcp-queries-received-ipv6: 8158916 dns-udp-responses-sent-ipv4: 3786277147 dns-udp-responses-sent-ipv6: 431978287 dns-tcp-responses-sent-ipv4: 167732680 dns-tcp-responses-sent-ipv6: 8252125