--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4382622246 dns-udp-queries-received-ipv6: 895272794 dns-tcp-queries-received-ipv4: 112243451 dns-tcp-queries-received-ipv6: 19741537 dns-udp-responses-sent-ipv4: 4361248045 dns-udp-responses-sent-ipv6: 893367299 dns-tcp-responses-sent-ipv4: 108553997 dns-tcp-responses-sent-ipv6: 19611892