--- version: rssac002v3 service: i.root-servers.net start-period: '2021-02-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5276444827 dns-udp-queries-received-ipv6: 1131685796 dns-tcp-queries-received-ipv4: 502307706 dns-tcp-queries-received-ipv6: 169894938 dns-udp-responses-sent-ipv4: 4279915537 dns-udp-responses-sent-ipv6: 1017220187 dns-tcp-responses-sent-ipv4: 365405321 dns-tcp-responses-sent-ipv6: 155003462