--- version: rssac002v3 service: m.root-servers.net start-period: '2019-04-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3248953174 dns-udp-queries-received-ipv6: 693179230 dns-udp-responses-sent-ipv4: 3028249171 dns-udp-responses-sent-ipv6: 636514256 dns-tcp-queries-received-ipv4: 155445382 dns-tcp-queries-received-ipv6: 45395478 dns-tcp-responses-sent-ipv4: 155324053 dns-tcp-responses-sent-ipv6: 45500301