--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7384063194 dns-udp-queries-received-ipv6: 1372957221 dns-tcp-queries-received-ipv4: 150161301 dns-tcp-queries-received-ipv6: 35274862 dns-udp-responses-sent-ipv4: 7425275141 dns-udp-responses-sent-ipv6: 1396028290 dns-tcp-responses-sent-ipv4: 144509295 dns-tcp-responses-sent-ipv6: 32314391