--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7111999526 dns-udp-queries-received-ipv6: 1360406420 dns-tcp-queries-received-ipv4: 148798705 dns-tcp-queries-received-ipv6: 33952945 dns-udp-responses-sent-ipv4: 7022124548 dns-udp-responses-sent-ipv6: 1359001755 dns-tcp-responses-sent-ipv4: 136398446 dns-tcp-responses-sent-ipv6: 30779586