--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3644906166 dns-udp-queries-received-ipv6: 381148435 dns-tcp-queries-received-ipv4: 140793358 dns-tcp-queries-received-ipv6: 8732279 dns-udp-responses-sent-ipv4: 3641679453 dns-udp-responses-sent-ipv6: 381101663 dns-tcp-responses-sent-ipv4: 140985870 dns-tcp-responses-sent-ipv6: 8855038