--- version: rssac002v3 service: i.root-servers.net start-period: '2021-06-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5243995105 dns-udp-queries-received-ipv6: 939494277 dns-tcp-queries-received-ipv4: 471078665 dns-tcp-queries-received-ipv6: 111058717 dns-udp-responses-sent-ipv4: 4601562846 dns-udp-responses-sent-ipv6: 908886127 dns-tcp-responses-sent-ipv4: 402278468 dns-tcp-responses-sent-ipv6: 103674217