--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4873905689 dns-udp-queries-received-ipv6: 856377066 dns-tcp-queries-received-ipv4: 489688707 dns-tcp-queries-received-ipv6: 128403053 dns-udp-responses-sent-ipv4: 3949171650 dns-udp-responses-sent-ipv6: 798895973 dns-tcp-responses-sent-ipv4: 362488547 dns-tcp-responses-sent-ipv6: 115631474