--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5296463793 dns-udp-queries-received-ipv6: 927894737 dns-tcp-queries-received-ipv4: 518422439 dns-tcp-queries-received-ipv6: 127748749 dns-udp-responses-sent-ipv4: 4262034462 dns-udp-responses-sent-ipv6: 861377793 dns-tcp-responses-sent-ipv4: 381090687 dns-tcp-responses-sent-ipv6: 117405537