--- version: rssac002v3 service: i.root-servers.net start-period: '2021-12-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6262683789 dns-udp-queries-received-ipv6: 1483427064 dns-tcp-queries-received-ipv4: 584994478 dns-tcp-queries-received-ipv6: 67173446 dns-udp-responses-sent-ipv4: 5524614583 dns-udp-responses-sent-ipv6: 1381282096 dns-tcp-responses-sent-ipv4: 565459363 dns-tcp-responses-sent-ipv6: 51425323