--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6713730528 dns-udp-queries-received-ipv6: 1261802458 dns-tcp-queries-received-ipv4: 120001067 dns-tcp-queries-received-ipv6: 24123392 dns-udp-responses-sent-ipv4: 6605778171 dns-udp-responses-sent-ipv6: 1263194052 dns-tcp-responses-sent-ipv4: 115843361 dns-tcp-responses-sent-ipv6: 23465936