--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4994671253 dns-udp-queries-received-ipv6: 1135688237 dns-tcp-queries-received-ipv4: 570114554 dns-tcp-queries-received-ipv6: 128049409 dns-udp-responses-sent-ipv4: 4308059688 dns-udp-responses-sent-ipv6: 1007610794 dns-tcp-responses-sent-ipv4: 543334583 dns-tcp-responses-sent-ipv6: 124081062