--- version: rssac002v3 service: i.root-servers.net start-period: '2018-12-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6062655452 dns-udp-queries-received-ipv6: 1134864513 dns-tcp-queries-received-ipv4: 133715946 dns-tcp-queries-received-ipv6: 28338623 dns-udp-responses-sent-ipv4: 5977792032 dns-udp-responses-sent-ipv6: 1140857326 dns-tcp-responses-sent-ipv4: 130444315 dns-tcp-responses-sent-ipv6: 27395375