--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1927725654 dns-udp-queries-received-ipv6: 480960324 dns-tcp-queries-received-ipv4: 20575556 dns-tcp-queries-received-ipv6: 4709509 dns-udp-responses-sent-ipv4: 1914070837 dns-udp-responses-sent-ipv6: 481966811 dns-tcp-responses-sent-ipv4: 19370120 dns-tcp-responses-sent-ipv6: 4465240