--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5116412417 dns-udp-queries-received-ipv6: 958702862 dns-tcp-queries-received-ipv4: 121563687 dns-tcp-queries-received-ipv6: 24722246 dns-udp-responses-sent-ipv4: 5104498437 dns-udp-responses-sent-ipv6: 958587991 dns-tcp-responses-sent-ipv4: 119948105 dns-tcp-responses-sent-ipv6: 24336204