--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5242925367 dns-udp-queries-received-ipv6: 1038936546 dns-tcp-queries-received-ipv4: 480274209 dns-tcp-queries-received-ipv6: 115750468 dns-udp-responses-sent-ipv4: 4555553030 dns-udp-responses-sent-ipv6: 1036039069 dns-tcp-responses-sent-ipv4: 412881271 dns-tcp-responses-sent-ipv6: 107689420