--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5123395178 dns-udp-queries-received-ipv6: 1312135233 dns-tcp-queries-received-ipv4: 444068026 dns-tcp-queries-received-ipv6: 163407163 dns-udp-responses-sent-ipv4: 4250916664 dns-udp-responses-sent-ipv6: 1192610428 dns-tcp-responses-sent-ipv4: 348211035 dns-tcp-responses-sent-ipv6: 154480849