--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5700374310 dns-udp-queries-received-ipv6: 1109294177 dns-tcp-queries-received-ipv4: 557753210 dns-tcp-queries-received-ipv6: 61814810 dns-udp-responses-sent-ipv4: 4919369105 dns-udp-responses-sent-ipv6: 1026439236 dns-tcp-responses-sent-ipv4: 543354653 dns-tcp-responses-sent-ipv6: 45132144