--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4958331259 dns-udp-queries-received-ipv6: 960531392 dns-tcp-queries-received-ipv4: 560523439 dns-tcp-queries-received-ipv6: 129721123 dns-udp-responses-sent-ipv4: 3999803017 dns-udp-responses-sent-ipv6: 870956559 dns-tcp-responses-sent-ipv4: 447029494 dns-tcp-responses-sent-ipv6: 120310550