--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5183428758 dns-udp-queries-received-ipv6: 757649416 dns-tcp-queries-received-ipv4: 113616843 dns-tcp-queries-received-ipv6: 18448858 dns-udp-responses-sent-ipv4: 5207793634 dns-udp-responses-sent-ipv6: 757217824 dns-tcp-responses-sent-ipv4: 111668755 dns-tcp-responses-sent-ipv6: 18462603