--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4469207794 dns-udp-queries-received-ipv6: 855926949 dns-tcp-queries-received-ipv4: 402184949 dns-tcp-queries-received-ipv6: 111479654 dns-udp-responses-sent-ipv4: 3822291951 dns-udp-responses-sent-ipv6: 814417789 dns-tcp-responses-sent-ipv4: 333511136 dns-tcp-responses-sent-ipv6: 105417196