--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4617346187 dns-udp-queries-received-ipv6: 908364005 dns-tcp-queries-received-ipv4: 424102523 dns-tcp-queries-received-ipv6: 138321786 dns-udp-responses-sent-ipv4: 3912602626 dns-udp-responses-sent-ipv6: 833913550 dns-tcp-responses-sent-ipv4: 342397157 dns-tcp-responses-sent-ipv6: 133031878