--- version: rssac002v3 service: i.root-servers.net start-period: '2016-12-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6217771860 dns-udp-queries-received-ipv6: 744114470 dns-tcp-queries-received-ipv4: 60830986 dns-tcp-queries-received-ipv6: 6143565 dns-udp-responses-sent-ipv4: 6352001872 dns-udp-responses-sent-ipv6: 744019209 dns-tcp-responses-sent-ipv4: 62640476 dns-tcp-responses-sent-ipv6: 6181159