--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5096109091 dns-udp-queries-received-ipv6: 1177619999 dns-tcp-queries-received-ipv4: 484093402 dns-tcp-queries-received-ipv6: 155572214 dns-udp-responses-sent-ipv4: 4372760750 dns-udp-responses-sent-ipv6: 996824488 dns-tcp-responses-sent-ipv4: 454184580 dns-tcp-responses-sent-ipv6: 132074488