--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4390624259 dns-udp-queries-received-ipv6: 752304051 dns-udp-responses-sent-ipv4: 4134523570 dns-udp-responses-sent-ipv6: 689780116 dns-tcp-queries-received-ipv4: 189939877 dns-tcp-queries-received-ipv6: 42728305 dns-tcp-responses-sent-ipv4: 184912833 dns-tcp-responses-sent-ipv6: 42904255