--- version: rssac002v3 service: i.root-servers.net start-period: '2016-12-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6684927860 dns-udp-queries-received-ipv6: 731129875 dns-tcp-queries-received-ipv4: 73482159 dns-tcp-queries-received-ipv6: 7501788 dns-udp-responses-sent-ipv4: 6825370793 dns-udp-responses-sent-ipv6: 730572757 dns-tcp-responses-sent-ipv4: 75924598 dns-tcp-responses-sent-ipv6: 7476200