--- version: rssac002v3 service: i.root-servers.net start-period: '2021-06-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5323591249 dns-udp-queries-received-ipv6: 953957861 dns-tcp-queries-received-ipv4: 495308284 dns-tcp-queries-received-ipv6: 108054624 dns-udp-responses-sent-ipv4: 4660697158 dns-udp-responses-sent-ipv6: 924990958 dns-tcp-responses-sent-ipv4: 417259163 dns-tcp-responses-sent-ipv6: 100324740