--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6004471256 dns-udp-queries-received-ipv6: 717720691 dns-tcp-queries-received-ipv4: 140439972 dns-tcp-queries-received-ipv6: 16707400 dns-udp-responses-sent-ipv4: 6060908569 dns-udp-responses-sent-ipv6: 741918148 dns-tcp-responses-sent-ipv4: 138088465 dns-tcp-responses-sent-ipv6: 16644859