--- version: rssac002v3 service: i.root-servers.net start-period: '2021-09-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4822320166 dns-udp-queries-received-ipv6: 1185738569 dns-tcp-queries-received-ipv4: 496977410 dns-tcp-queries-received-ipv6: 142996694 dns-udp-responses-sent-ipv4: 4320726133 dns-udp-responses-sent-ipv6: 1060225621 dns-tcp-responses-sent-ipv4: 493136629 dns-tcp-responses-sent-ipv6: 127735500