--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5132733962 dns-udp-queries-received-ipv6: 757129483 dns-tcp-queries-received-ipv4: 117698763 dns-tcp-queries-received-ipv6: 17407282 dns-udp-responses-sent-ipv4: 5144056791 dns-udp-responses-sent-ipv6: 756914343 dns-tcp-responses-sent-ipv4: 115642758 dns-tcp-responses-sent-ipv6: 17409917