--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5608781765 dns-udp-queries-received-ipv6: 1041439524 dns-tcp-queries-received-ipv4: 125799197 dns-tcp-queries-received-ipv6: 26082026 dns-udp-responses-sent-ipv4: 5642942181 dns-udp-responses-sent-ipv6: 1042599971 dns-tcp-responses-sent-ipv4: 124879500 dns-tcp-responses-sent-ipv6: 25746115