--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5278639286 dns-udp-queries-received-ipv6: 1027896685 dns-tcp-queries-received-ipv4: 512617194 dns-tcp-queries-received-ipv6: 135103911 dns-udp-responses-sent-ipv4: 4158851736 dns-udp-responses-sent-ipv6: 907787821 dns-tcp-responses-sent-ipv4: 387447295 dns-tcp-responses-sent-ipv6: 123610512