--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6981125449 dns-udp-queries-received-ipv6: 1430154311 dns-tcp-queries-received-ipv4: 153720689 dns-tcp-queries-received-ipv6: 33030692 dns-udp-responses-sent-ipv4: 6894941414 dns-udp-responses-sent-ipv6: 1426517376 dns-tcp-responses-sent-ipv4: 147179639 dns-tcp-responses-sent-ipv6: 30375034