--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6134842553 dns-udp-queries-received-ipv6: 736486465 dns-tcp-queries-received-ipv4: 84860220 dns-tcp-queries-received-ipv6: 13744002 dns-udp-responses-sent-ipv4: 6123329150 dns-udp-responses-sent-ipv6: 730762851 dns-tcp-responses-sent-ipv4: 85793942 dns-tcp-responses-sent-ipv6: 13795213