--- version: rssac002v3 service: i.root-servers.net start-period: '2018-07-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5189721746 dns-udp-queries-received-ipv6: 942426956 dns-tcp-queries-received-ipv4: 124720667 dns-tcp-queries-received-ipv6: 20044328 dns-udp-responses-sent-ipv4: 5156136400 dns-udp-responses-sent-ipv6: 941049219 dns-tcp-responses-sent-ipv4: 121989157 dns-tcp-responses-sent-ipv6: 19883354