--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5529451500 dns-udp-queries-received-ipv6: 852858313 dns-tcp-queries-received-ipv4: 122766124 dns-tcp-queries-received-ipv6: 17122014 dns-udp-responses-sent-ipv4: 5669024850 dns-udp-responses-sent-ipv6: 868640172 dns-tcp-responses-sent-ipv4: 119951027 dns-tcp-responses-sent-ipv6: 17167318