--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5035358244 dns-udp-queries-received-ipv6: 651716873 dns-tcp-queries-received-ipv4: 90194091 dns-tcp-queries-received-ipv6: 12638365 dns-udp-responses-sent-ipv4: 5093273549 dns-udp-responses-sent-ipv6: 701116676 dns-tcp-responses-sent-ipv4: 89641257 dns-tcp-responses-sent-ipv6: 12655944