--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6385522842 dns-udp-queries-received-ipv6: 1349357414 dns-tcp-queries-received-ipv4: 137367690 dns-tcp-queries-received-ipv6: 32076151 dns-udp-responses-sent-ipv4: 6296161406 dns-udp-responses-sent-ipv6: 1345573040 dns-tcp-responses-sent-ipv4: 130686822 dns-tcp-responses-sent-ipv6: 29204057