--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4000385855 dns-udp-queries-received-ipv6: 754025139 dns-tcp-queries-received-ipv4: 76530119 dns-tcp-queries-received-ipv6: 12190082 dns-udp-responses-sent-ipv4: 4001924549 dns-udp-responses-sent-ipv6: 771893487 dns-tcp-responses-sent-ipv4: 74394869 dns-tcp-responses-sent-ipv6: 11936709