--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5402007087 dns-udp-queries-received-ipv6: 939688413 dns-tcp-queries-received-ipv4: 117463315 dns-tcp-queries-received-ipv6: 19800137 dns-udp-responses-sent-ipv4: 5403507191 dns-udp-responses-sent-ipv6: 937944574 dns-tcp-responses-sent-ipv4: 114496497 dns-tcp-responses-sent-ipv6: 19600728