--- version: rssac002v3 service: m.root-servers.net start-period: '2019-02-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3462287054 dns-udp-queries-received-ipv6: 695930045 dns-udp-responses-sent-ipv4: 3346433094 dns-udp-responses-sent-ipv6: 666081861 dns-tcp-queries-received-ipv4: 161999558 dns-tcp-queries-received-ipv6: 40065672 dns-tcp-responses-sent-ipv4: 161898876 dns-tcp-responses-sent-ipv6: 40234610