--- version: rssac002v3 service: m.root-servers.net start-period: '2019-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4058691886 dns-udp-queries-received-ipv6: 1159841396 dns-udp-responses-sent-ipv4: 3902134427 dns-udp-responses-sent-ipv6: 1002903717 dns-tcp-queries-received-ipv4: 231499704 dns-tcp-queries-received-ipv6: 65880052 dns-tcp-responses-sent-ipv4: 231886238 dns-tcp-responses-sent-ipv6: 65946668