--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4912834452 dns-udp-queries-received-ipv6: 1061222155 dns-tcp-queries-received-ipv4: 538688200 dns-tcp-queries-received-ipv6: 97303781 dns-udp-responses-sent-ipv4: 4025664737 dns-udp-responses-sent-ipv6: 1033838015 dns-tcp-responses-sent-ipv4: 439154458 dns-tcp-responses-sent-ipv6: 96066226