--- version: rssac002v3 service: i.root-servers.net start-period: '2021-05-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5319159347 dns-udp-queries-received-ipv6: 975012015 dns-tcp-queries-received-ipv4: 462291075 dns-tcp-queries-received-ipv6: 110097348 dns-udp-responses-sent-ipv4: 4702070489 dns-udp-responses-sent-ipv6: 937936771 dns-tcp-responses-sent-ipv4: 399329909 dns-tcp-responses-sent-ipv6: 100989903