--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5703773646 dns-udp-queries-received-ipv6: 1041858433 dns-tcp-queries-received-ipv4: 135515363 dns-tcp-queries-received-ipv6: 27157060 dns-udp-responses-sent-ipv4: 5695222695 dns-udp-responses-sent-ipv6: 1043470497 dns-tcp-responses-sent-ipv4: 133549488 dns-tcp-responses-sent-ipv6: 26815924