--- version: rssac002v3 service: i.root-servers.net start-period: '2021-08-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4698618496 dns-udp-queries-received-ipv6: 1086710656 dns-tcp-queries-received-ipv4: 550828026 dns-tcp-queries-received-ipv6: 135812897 dns-udp-responses-sent-ipv4: 3980797377 dns-udp-responses-sent-ipv6: 946529240 dns-tcp-responses-sent-ipv4: 534874943 dns-tcp-responses-sent-ipv6: 135807100