--- version: rssac002v3 service: i.root-servers.net start-period: '2018-09-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5393129827 dns-udp-queries-received-ipv6: 1056786198 dns-tcp-queries-received-ipv4: 121908720 dns-tcp-queries-received-ipv6: 27092615 dns-udp-responses-sent-ipv4: 5444285748 dns-udp-responses-sent-ipv6: 1058805819 dns-tcp-responses-sent-ipv4: 123660535 dns-tcp-responses-sent-ipv6: 26451145