--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5458700116 dns-udp-queries-received-ipv6: 1069152956 dns-tcp-queries-received-ipv4: 507085940 dns-tcp-queries-received-ipv6: 110587014 dns-udp-responses-sent-ipv4: 4713907372 dns-udp-responses-sent-ipv6: 1066349750 dns-tcp-responses-sent-ipv4: 430326753 dns-tcp-responses-sent-ipv6: 103747367