--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6687938077 dns-udp-queries-received-ipv6: 1327336888 dns-tcp-queries-received-ipv4: 128525419 dns-tcp-queries-received-ipv6: 27189391 dns-udp-responses-sent-ipv4: 6540791626 dns-udp-responses-sent-ipv6: 1329810075 dns-tcp-responses-sent-ipv4: 123330140 dns-tcp-responses-sent-ipv6: 26184570