--- version: rssac002v3 service: i.root-servers.net start-period: '2019-01-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6032592686 dns-udp-queries-received-ipv6: 1295046188 dns-tcp-queries-received-ipv4: 136088393 dns-tcp-queries-received-ipv6: 33027080 dns-udp-responses-sent-ipv4: 5903943132 dns-udp-responses-sent-ipv6: 1268021478 dns-tcp-responses-sent-ipv4: 128647014 dns-tcp-responses-sent-ipv6: 29765554