--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4748902963 dns-udp-queries-received-ipv6: 1070995926 dns-tcp-queries-received-ipv4: 477658234 dns-tcp-queries-received-ipv6: 104348653 dns-udp-responses-sent-ipv4: 4222744090 dns-udp-responses-sent-ipv6: 1056747192 dns-tcp-responses-sent-ipv4: 424269875 dns-tcp-responses-sent-ipv6: 91937295