--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5129294377 dns-udp-queries-received-ipv6: 1107635766 dns-tcp-queries-received-ipv4: 511140587 dns-tcp-queries-received-ipv6: 171965564 dns-udp-responses-sent-ipv4: 4092860056 dns-udp-responses-sent-ipv6: 1021384603 dns-tcp-responses-sent-ipv4: 359983026 dns-tcp-responses-sent-ipv6: 157853167