--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3208544309 dns-udp-queries-received-ipv6: 671293960 dns-tcp-queries-received-ipv4: 59071475 dns-tcp-queries-received-ipv6: 11331662 dns-udp-responses-sent-ipv4: 3224262515 dns-udp-responses-sent-ipv6: 687285710 dns-tcp-responses-sent-ipv4: 57197973 dns-tcp-responses-sent-ipv6: 11054162