--- version: rssac002v3 service: i.root-servers.net start-period: '2021-03-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4634533871 dns-udp-queries-received-ipv6: 755772147 dns-tcp-queries-received-ipv4: 394784343 dns-tcp-queries-received-ipv6: 96369596 dns-udp-responses-sent-ipv4: 3907923319 dns-udp-responses-sent-ipv6: 718711349 dns-tcp-responses-sent-ipv4: 319231803 dns-tcp-responses-sent-ipv6: 93937728