--- version: rssac002v3 service: d.root-servers.net start-period: '2017-12-21T00:00:00Z' end-period: '2017-12-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4666868696 dns-udp-queries-received-ipv6: 540175939 dns-tcp-queries-received-ipv4: 88207075 dns-tcp-queries-received-ipv6: 12711466 dns-udp-responses-sent-ipv4: 4665606865 dns-udp-responses-sent-ipv6: 539993549 dns-tcp-responses-sent-ipv4: 88156505 dns-tcp-responses-sent-ipv6: 12709448