--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4640117485 dns-udp-queries-received-ipv6: 610662031 dns-tcp-queries-received-ipv4: 79812505 dns-tcp-queries-received-ipv6: 12129264 dns-udp-responses-sent-ipv4: 4702687364 dns-udp-responses-sent-ipv6: 659964063 dns-tcp-responses-sent-ipv4: 79724162 dns-tcp-responses-sent-ipv6: 12156695