--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6498622779 dns-udp-queries-received-ipv6: 1191499920 dns-tcp-queries-received-ipv4: 108674591 dns-tcp-queries-received-ipv6: 21624580 dns-udp-responses-sent-ipv4: 6441736245 dns-udp-responses-sent-ipv6: 1212276223 dns-tcp-responses-sent-ipv4: 104436799 dns-tcp-responses-sent-ipv6: 21018922