--- version: rssac002v3 service: i.root-servers.net start-period: '2019-01-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6067085312 dns-udp-queries-received-ipv6: 1271459555 dns-tcp-queries-received-ipv4: 134034444 dns-tcp-queries-received-ipv6: 32825119 dns-udp-responses-sent-ipv4: 5937747306 dns-udp-responses-sent-ipv6: 1243852381 dns-tcp-responses-sent-ipv4: 126639592 dns-tcp-responses-sent-ipv6: 29639507