--- version: rssac002v3 service: i.root-servers.net start-period: '2021-07-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4943630898 dns-udp-queries-received-ipv6: 957629161 dns-tcp-queries-received-ipv4: 497802675 dns-tcp-queries-received-ipv6: 108958923 dns-udp-responses-sent-ipv4: 4293818248 dns-udp-responses-sent-ipv6: 959592260 dns-tcp-responses-sent-ipv4: 425010750 dns-tcp-responses-sent-ipv6: 104934340