--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5012272589 dns-udp-queries-received-ipv6: 1005616736 dns-tcp-queries-received-ipv4: 117857390 dns-tcp-queries-received-ipv6: 20160399 dns-udp-responses-sent-ipv4: 5001176173 dns-udp-responses-sent-ipv6: 1003342291 dns-tcp-responses-sent-ipv4: 115148331 dns-tcp-responses-sent-ipv6: 19987618