--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5101582043 dns-udp-queries-received-ipv6: 949970145 dns-tcp-queries-received-ipv4: 119225573 dns-tcp-queries-received-ipv6: 24762014 dns-udp-responses-sent-ipv4: 5079852535 dns-udp-responses-sent-ipv6: 949989400 dns-tcp-responses-sent-ipv4: 117602105 dns-tcp-responses-sent-ipv6: 24418236