--- version: rssac002v3 service: i.root-servers.net start-period: '2017-12-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6009812728 dns-udp-queries-received-ipv6: 692103768 dns-tcp-queries-received-ipv4: 87378001 dns-tcp-queries-received-ipv6: 12642742 dns-udp-responses-sent-ipv4: 6087848676 dns-udp-responses-sent-ipv6: 689988977 dns-tcp-responses-sent-ipv4: 87968235 dns-tcp-responses-sent-ipv6: 12674334