--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5001551672 dns-udp-queries-received-ipv6: 593981560 dns-tcp-queries-received-ipv4: 81486421 dns-tcp-queries-received-ipv6: 12650909 dns-udp-responses-sent-ipv4: 5080777877 dns-udp-responses-sent-ipv6: 598271823 dns-tcp-responses-sent-ipv4: 81750316 dns-tcp-responses-sent-ipv6: 12690743