--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5469687060 dns-udp-queries-received-ipv6: 1000676872 dns-tcp-queries-received-ipv4: 561972656 dns-tcp-queries-received-ipv6: 129159769 dns-udp-responses-sent-ipv4: 4286471467 dns-udp-responses-sent-ipv6: 885054530 dns-tcp-responses-sent-ipv4: 434822600 dns-tcp-responses-sent-ipv6: 120302575