--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5577032418 dns-udp-queries-received-ipv6: 1041663295 dns-tcp-queries-received-ipv4: 134868489 dns-tcp-queries-received-ipv6: 26379502 dns-udp-responses-sent-ipv4: 5620099318 dns-udp-responses-sent-ipv6: 1040899479 dns-tcp-responses-sent-ipv4: 133527392 dns-tcp-responses-sent-ipv6: 26016850