--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6362810219 dns-udp-queries-received-ipv6: 1561068613 dns-tcp-queries-received-ipv4: 611954610 dns-tcp-queries-received-ipv6: 95328605 dns-udp-responses-sent-ipv4: 5605451521 dns-udp-responses-sent-ipv6: 1441955107 dns-tcp-responses-sent-ipv4: 584094205 dns-tcp-responses-sent-ipv6: 86328073