--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5193404220 dns-udp-queries-received-ipv6: 936806043 dns-tcp-queries-received-ipv4: 112496480 dns-tcp-queries-received-ipv6: 17328832 dns-udp-responses-sent-ipv4: 5221755472 dns-udp-responses-sent-ipv6: 936995582 dns-tcp-responses-sent-ipv4: 109093862 dns-tcp-responses-sent-ipv6: 17328476