--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5960269006 dns-udp-queries-received-ipv6: 1298042486 dns-tcp-queries-received-ipv4: 630575279 dns-tcp-queries-received-ipv6: 69154616 dns-udp-responses-sent-ipv4: 5110924829 dns-udp-responses-sent-ipv6: 1188825246 dns-tcp-responses-sent-ipv4: 597697264 dns-tcp-responses-sent-ipv6: 59791829