--- version: rssac002v3 service: i.root-servers.net start-period: '2016-05-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6046317952 dns-udp-queries-received-ipv6: 430711685 dns-tcp-queries-received-ipv4: 18775865 dns-tcp-queries-received-ipv6: 702916 dns-udp-responses-sent-ipv4: 6071125939 dns-udp-responses-sent-ipv6: 438624635 dns-tcp-responses-sent-ipv4: 19096272 dns-tcp-responses-sent-ipv6: 709337