--- version: rssac002v3 service: i.root-servers.net start-period: '2020-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4550074479 dns-udp-queries-received-ipv6: 907007032 dns-tcp-queries-received-ipv4: 506712546 dns-tcp-queries-received-ipv6: 119183964 dns-udp-responses-sent-ipv4: 3638699707 dns-udp-responses-sent-ipv6: 818136687 dns-tcp-responses-sent-ipv4: 390013525 dns-tcp-responses-sent-ipv6: 109374007