--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5665829050 dns-udp-queries-received-ipv6: 883143516 dns-tcp-queries-received-ipv4: 441326839 dns-tcp-queries-received-ipv6: 106969149 dns-udp-responses-sent-ipv4: 4386330035 dns-udp-responses-sent-ipv6: 837029227 dns-tcp-responses-sent-ipv4: 350861680 dns-tcp-responses-sent-ipv6: 93886343