--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4929565320 dns-udp-queries-received-ipv6: 627043230 dns-tcp-queries-received-ipv4: 84754624 dns-tcp-queries-received-ipv6: 12733491 dns-udp-responses-sent-ipv4: 4997350649 dns-udp-responses-sent-ipv6: 679189463 dns-tcp-responses-sent-ipv4: 84921122 dns-tcp-responses-sent-ipv6: 12718409