--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5544807408 dns-udp-queries-received-ipv6: 649459026 dns-tcp-queries-received-ipv4: 138849131 dns-tcp-queries-received-ipv6: 17952314 dns-udp-responses-sent-ipv4: 5541196600 dns-udp-responses-sent-ipv6: 649553691 dns-tcp-responses-sent-ipv4: 137237111 dns-tcp-responses-sent-ipv6: 18005212