--- version: rssac002v3 service: i.root-servers.net start-period: '2018-02-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5243120417 dns-udp-queries-received-ipv6: 690757555 dns-tcp-queries-received-ipv4: 94174949 dns-tcp-queries-received-ipv6: 14716503 dns-udp-responses-sent-ipv4: 5264026135 dns-udp-responses-sent-ipv6: 685399830 dns-tcp-responses-sent-ipv4: 95251575 dns-tcp-responses-sent-ipv6: 14762962