--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5489902364 dns-udp-queries-received-ipv6: 642873652 dns-tcp-queries-received-ipv4: 86871732 dns-tcp-queries-received-ipv6: 12590286 dns-udp-responses-sent-ipv4: 5601289619 dns-udp-responses-sent-ipv6: 638980479 dns-tcp-responses-sent-ipv4: 87298747 dns-tcp-responses-sent-ipv6: 12552767