--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5613744637 dns-udp-queries-received-ipv6: 749472182 dns-tcp-queries-received-ipv4: 94085875 dns-tcp-queries-received-ipv6: 14108561 dns-udp-responses-sent-ipv4: 5707647029 dns-udp-responses-sent-ipv6: 745472383 dns-tcp-responses-sent-ipv4: 95081327 dns-tcp-responses-sent-ipv6: 14123933