--- version: rssac002v3 service: m.root-servers.net start-period: '2019-05-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3961784562 dns-udp-queries-received-ipv6: 778186193 dns-udp-responses-sent-ipv4: 3690510671 dns-udp-responses-sent-ipv6: 721817118 dns-tcp-queries-received-ipv4: 160291926 dns-tcp-queries-received-ipv6: 45111374 dns-tcp-responses-sent-ipv4: 160339170 dns-tcp-responses-sent-ipv6: 45267215