--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4209932594 dns-udp-queries-received-ipv6: 777525989 dns-tcp-queries-received-ipv4: 434731460 dns-tcp-queries-received-ipv6: 81127013 dns-udp-responses-sent-ipv4: 3708093220 dns-udp-responses-sent-ipv6: 789212652 dns-tcp-responses-sent-ipv4: 382761336 dns-tcp-responses-sent-ipv6: 77817728