--- version: rssac002v3 service: i.root-servers.net start-period: '2021-10-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5290480647 dns-udp-queries-received-ipv6: 1171090441 dns-tcp-queries-received-ipv4: 520460862 dns-tcp-queries-received-ipv6: 137619996 dns-udp-responses-sent-ipv4: 4449907384 dns-udp-responses-sent-ipv6: 994317894 dns-tcp-responses-sent-ipv4: 483893427 dns-tcp-responses-sent-ipv6: 122073416