--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5081695604 dns-udp-queries-received-ipv6: 992552243 dns-tcp-queries-received-ipv4: 481152056 dns-tcp-queries-received-ipv6: 134562012 dns-udp-responses-sent-ipv4: 4070406705 dns-udp-responses-sent-ipv6: 908803426 dns-tcp-responses-sent-ipv4: 340352114 dns-tcp-responses-sent-ipv6: 121981927