--- version: rssac002v3 service: i.root-servers.net start-period: '2021-09-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5030417357 dns-udp-queries-received-ipv6: 1158184915 dns-tcp-queries-received-ipv4: 520967335 dns-tcp-queries-received-ipv6: 143045845 dns-udp-responses-sent-ipv4: 4456995996 dns-udp-responses-sent-ipv6: 1030463278 dns-tcp-responses-sent-ipv4: 485672435 dns-tcp-responses-sent-ipv6: 124889428