--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4696901724 dns-udp-queries-received-ipv6: 968131861 dns-tcp-queries-received-ipv4: 107190217 dns-tcp-queries-received-ipv6: 17084016 dns-udp-responses-sent-ipv4: 4715397297 dns-udp-responses-sent-ipv6: 884372382 dns-tcp-responses-sent-ipv4: 103969816 dns-tcp-responses-sent-ipv6: 17036593