--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5199758325 dns-udp-queries-received-ipv6: 645538108 dns-tcp-queries-received-ipv4: 90795123 dns-tcp-queries-received-ipv6: 13232247 dns-udp-responses-sent-ipv4: 5272540622 dns-udp-responses-sent-ipv6: 693733804 dns-tcp-responses-sent-ipv4: 90989941 dns-tcp-responses-sent-ipv6: 13199367