--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6813077244 dns-udp-queries-received-ipv6: 1886192582 dns-tcp-queries-received-ipv4: 800358500 dns-tcp-queries-received-ipv6: 287558822 dns-udp-responses-sent-ipv4: 5030573102 dns-udp-responses-sent-ipv6: 1535438505 dns-tcp-responses-sent-ipv4: 689676991 dns-tcp-responses-sent-ipv6: 315073229