--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5957764656 dns-udp-queries-received-ipv6: 736034795 dns-tcp-queries-received-ipv4: 129185738 dns-tcp-queries-received-ipv6: 15466874 dns-udp-responses-sent-ipv4: 5920110727 dns-udp-responses-sent-ipv6: 732278443 dns-tcp-responses-sent-ipv4: 126844548 dns-tcp-responses-sent-ipv6: 15546282