--- version: rssac002v3 service: m.root-servers.net start-period: '2019-02-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3497778552 dns-udp-queries-received-ipv6: 723091067 dns-udp-responses-sent-ipv4: 3367780304 dns-udp-responses-sent-ipv6: 687030284 dns-tcp-queries-received-ipv4: 160211710 dns-tcp-queries-received-ipv6: 41130783 dns-tcp-responses-sent-ipv4: 160134538 dns-tcp-responses-sent-ipv6: 41271544