--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4816818134 dns-udp-queries-received-ipv6: 850894080 dns-tcp-queries-received-ipv4: 463728149 dns-tcp-queries-received-ipv6: 115896795 dns-udp-responses-sent-ipv4: 3869302931 dns-udp-responses-sent-ipv6: 793688362 dns-tcp-responses-sent-ipv4: 343359278 dns-tcp-responses-sent-ipv6: 104911910