--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5761705898 dns-udp-queries-received-ipv6: 680752587 dns-tcp-queries-received-ipv4: 89304549 dns-tcp-queries-received-ipv6: 12575370 dns-udp-responses-sent-ipv4: 5861821768 dns-udp-responses-sent-ipv6: 676972471 dns-tcp-responses-sent-ipv4: 89628842 dns-tcp-responses-sent-ipv6: 12542547