--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6224661036 dns-udp-queries-received-ipv6: 1341470364 dns-tcp-queries-received-ipv4: 142763513 dns-tcp-queries-received-ipv6: 35083958 dns-udp-responses-sent-ipv4: 6179467158 dns-udp-responses-sent-ipv6: 1335011438 dns-tcp-responses-sent-ipv4: 137251819 dns-tcp-responses-sent-ipv6: 31744781