--- version: rssac002v3 service: m.root-servers.net start-period: '2019-03-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3153137184 dns-udp-queries-received-ipv6: 678015577 dns-udp-responses-sent-ipv4: 3001875590 dns-udp-responses-sent-ipv6: 635225069 dns-tcp-queries-received-ipv4: 153112752 dns-tcp-queries-received-ipv6: 42233365 dns-tcp-responses-sent-ipv4: 153533413 dns-tcp-responses-sent-ipv6: 42327178