--- version: rssac002v3 service: i.root-servers.net start-period: '2021-04-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4998906272 dns-udp-queries-received-ipv6: 937637434 dns-tcp-queries-received-ipv4: 434979640 dns-tcp-queries-received-ipv6: 130765048 dns-udp-responses-sent-ipv4: 4223403407 dns-udp-responses-sent-ipv6: 882403226 dns-tcp-responses-sent-ipv4: 366865693 dns-tcp-responses-sent-ipv6: 132683576