--- version: rssac002v3 service: i.root-servers.net start-period: '2019-03-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6828867693 dns-udp-queries-received-ipv6: 1266030536 dns-tcp-queries-received-ipv4: 127794341 dns-tcp-queries-received-ipv6: 29940647 dns-udp-responses-sent-ipv4: 6743463905 dns-udp-responses-sent-ipv6: 1256416044 dns-tcp-responses-sent-ipv4: 121439421 dns-tcp-responses-sent-ipv6: 27879869