--- version: rssac002v3 service: m.root-servers.net start-period: '2019-04-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3374468125 dns-udp-queries-received-ipv6: 702626524 dns-udp-responses-sent-ipv4: 3214623616 dns-udp-responses-sent-ipv6: 637635982 dns-tcp-queries-received-ipv4: 154118154 dns-tcp-queries-received-ipv6: 46839225 dns-tcp-responses-sent-ipv4: 153288500 dns-tcp-responses-sent-ipv6: 46942425