--- version: rssac002v3 service: m.root-servers.net start-period: '2019-12-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3567630394 dns-udp-queries-received-ipv6: 588830219 dns-udp-responses-sent-ipv4: 3320866025 dns-udp-responses-sent-ipv6: 559680516 dns-tcp-queries-received-ipv4: 196271337 dns-tcp-queries-received-ipv6: 76638074 dns-tcp-responses-sent-ipv4: 196114484 dns-tcp-responses-sent-ipv6: 76655665