--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5006668471 dns-udp-queries-received-ipv6: 823560449 dns-tcp-queries-received-ipv4: 120548272 dns-tcp-queries-received-ipv6: 16869547 dns-udp-responses-sent-ipv4: 4993495963 dns-udp-responses-sent-ipv6: 823446054 dns-tcp-responses-sent-ipv4: 116888045 dns-tcp-responses-sent-ipv6: 16941328