--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5728204701 dns-udp-queries-received-ipv6: 1103321787 dns-tcp-queries-received-ipv4: 551980821 dns-tcp-queries-received-ipv6: 65893387 dns-udp-responses-sent-ipv4: 4897614373 dns-udp-responses-sent-ipv6: 1019377226 dns-tcp-responses-sent-ipv4: 536035229 dns-tcp-responses-sent-ipv6: 48785452