--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5269447154 dns-udp-queries-received-ipv6: 1167737691 dns-tcp-queries-received-ipv4: 504650120 dns-tcp-queries-received-ipv6: 170457091 dns-udp-responses-sent-ipv4: 4268149298 dns-udp-responses-sent-ipv6: 1052653725 dns-tcp-responses-sent-ipv4: 369957900 dns-tcp-responses-sent-ipv6: 155085642