--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5834150461 dns-udp-queries-received-ipv6: 1017809718 dns-tcp-queries-received-ipv4: 135534249 dns-tcp-queries-received-ipv6: 21510958 dns-udp-responses-sent-ipv4: 5842168778 dns-udp-responses-sent-ipv6: 1016765286 dns-tcp-responses-sent-ipv4: 132514529 dns-tcp-responses-sent-ipv6: 21294118