--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5900668721 dns-udp-queries-received-ipv6: 686771616 dns-tcp-queries-received-ipv4: 91250138 dns-tcp-queries-received-ipv6: 13276787 dns-udp-responses-sent-ipv4: 5918068121 dns-udp-responses-sent-ipv6: 681955502 dns-tcp-responses-sent-ipv4: 91945841 dns-tcp-responses-sent-ipv6: 13295929