--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4336671489 dns-udp-queries-received-ipv6: 832810059 dns-tcp-queries-received-ipv4: 485748436 dns-tcp-queries-received-ipv6: 105637539 dns-udp-responses-sent-ipv4: 3885498468 dns-udp-responses-sent-ipv6: 845524629 dns-tcp-responses-sent-ipv4: 457618244 dns-tcp-responses-sent-ipv6: 105646943