--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5402094517 dns-udp-queries-received-ipv6: 1233681501 dns-tcp-queries-received-ipv4: 522929094 dns-tcp-queries-received-ipv6: 161531371 dns-udp-responses-sent-ipv4: 4926151783 dns-udp-responses-sent-ipv6: 1091710525 dns-tcp-responses-sent-ipv4: 513408038 dns-tcp-responses-sent-ipv6: 144070370