--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4491437493 dns-udp-queries-received-ipv6: 891186473 dns-tcp-queries-received-ipv4: 411809967 dns-tcp-queries-received-ipv6: 120223824 dns-udp-responses-sent-ipv4: 3782974243 dns-udp-responses-sent-ipv6: 839547018 dns-tcp-responses-sent-ipv4: 330405737 dns-tcp-responses-sent-ipv6: 113431358