--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5212293878 dns-udp-queries-received-ipv6: 696932602 dns-tcp-queries-received-ipv4: 88917672 dns-tcp-queries-received-ipv6: 14039725 dns-udp-responses-sent-ipv4: 5331807410 dns-udp-responses-sent-ipv6: 693314824 dns-tcp-responses-sent-ipv4: 89853305 dns-tcp-responses-sent-ipv6: 14098770