--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5145139838 dns-udp-queries-received-ipv6: 1160539576 dns-tcp-queries-received-ipv4: 501143475 dns-tcp-queries-received-ipv6: 133352258 dns-udp-responses-sent-ipv4: 4399088232 dns-udp-responses-sent-ipv6: 991386066 dns-tcp-responses-sent-ipv4: 463372491 dns-tcp-responses-sent-ipv6: 118033968