--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4848503264 dns-udp-queries-received-ipv6: 918681233 dns-tcp-queries-received-ipv4: 465822151 dns-tcp-queries-received-ipv6: 107255958 dns-udp-responses-sent-ipv4: 4253418810 dns-udp-responses-sent-ipv6: 931106976 dns-tcp-responses-sent-ipv4: 419910279 dns-tcp-responses-sent-ipv6: 101681753