--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5906568483 dns-udp-queries-received-ipv6: 741371987 dns-tcp-queries-received-ipv4: 123927859 dns-tcp-queries-received-ipv6: 19338437 dns-udp-responses-sent-ipv4: 5951366040 dns-udp-responses-sent-ipv6: 742101859 dns-tcp-responses-sent-ipv4: 121813672 dns-tcp-responses-sent-ipv6: 19371368