--- version: rssac002v3 service: i.root-servers.net start-period: '2019-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 96342545 dns-udp-queries-received-ipv6: 21465203 dns-tcp-queries-received-ipv4: 2060216 dns-tcp-queries-received-ipv6: 45111 dns-udp-responses-sent-ipv4: 101299650 dns-udp-responses-sent-ipv6: 21465201 dns-tcp-responses-sent-ipv4: 2094910 dns-tcp-responses-sent-ipv6: 45155