--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4381771781 dns-udp-queries-received-ipv6: 806487852 dns-udp-responses-sent-ipv4: 4149964423 dns-udp-responses-sent-ipv6: 685820878 dns-tcp-queries-received-ipv4: 188154433 dns-tcp-queries-received-ipv6: 44675486 dns-tcp-responses-sent-ipv4: 183135739 dns-tcp-responses-sent-ipv6: 44806049