--- version: rssac002v3 service: i.root-servers.net start-period: '2021-01-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5051110054 dns-udp-queries-received-ipv6: 1107183115 dns-tcp-queries-received-ipv4: 500392117 dns-tcp-queries-received-ipv6: 171563447 dns-udp-responses-sent-ipv4: 4052277807 dns-udp-responses-sent-ipv6: 1010817774 dns-tcp-responses-sent-ipv4: 360744681 dns-tcp-responses-sent-ipv6: 156684631