--- version: rssac002v3 service: i.root-servers.net start-period: '2018-05-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6051615880 dns-udp-queries-received-ipv6: 818190710 dns-tcp-queries-received-ipv4: 137962276 dns-tcp-queries-received-ipv6: 20482392 dns-udp-responses-sent-ipv4: 6178918062 dns-udp-responses-sent-ipv6: 836342363 dns-tcp-responses-sent-ipv4: 135620618 dns-tcp-responses-sent-ipv6: 20540033