--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5317016298 dns-udp-queries-received-ipv6: 1079527484 dns-tcp-queries-received-ipv4: 502704497 dns-tcp-queries-received-ipv6: 143697364 dns-udp-responses-sent-ipv4: 4289265793 dns-udp-responses-sent-ipv6: 984538670 dns-tcp-responses-sent-ipv4: 369318799 dns-tcp-responses-sent-ipv6: 130515794