--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6480784570 dns-udp-queries-received-ipv6: 1412594385 dns-tcp-queries-received-ipv4: 154440045 dns-tcp-queries-received-ipv6: 34953365 dns-udp-responses-sent-ipv4: 6413402869 dns-udp-responses-sent-ipv6: 1412075451 dns-tcp-responses-sent-ipv4: 148444501 dns-tcp-responses-sent-ipv6: 31527634