--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5580300391 dns-udp-queries-received-ipv6: 763105541 dns-tcp-queries-received-ipv4: 111433450 dns-tcp-queries-received-ipv6: 19590348 dns-udp-responses-sent-ipv4: 5614689423 dns-udp-responses-sent-ipv6: 763139756 dns-tcp-responses-sent-ipv4: 109561582 dns-tcp-responses-sent-ipv6: 19602648