--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5051208889 dns-udp-queries-received-ipv6: 665649694 dns-tcp-queries-received-ipv4: 91566822 dns-tcp-queries-received-ipv6: 12416816 dns-udp-responses-sent-ipv4: 5098994153 dns-udp-responses-sent-ipv6: 732270257 dns-tcp-responses-sent-ipv4: 90559323 dns-tcp-responses-sent-ipv6: 12504420