--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7000245438 dns-udp-queries-received-ipv6: 1297348193 dns-tcp-queries-received-ipv4: 123688635 dns-tcp-queries-received-ipv6: 26773183 dns-udp-responses-sent-ipv4: 6856793498 dns-udp-responses-sent-ipv6: 1298772871 dns-tcp-responses-sent-ipv4: 119675625 dns-tcp-responses-sent-ipv6: 25962697