--- version: rssac002v3 service: i.root-servers.net start-period: '2018-06-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5180986012 dns-udp-queries-received-ipv6: 955837793 dns-tcp-queries-received-ipv4: 122782915 dns-tcp-queries-received-ipv6: 18107788 dns-udp-responses-sent-ipv4: 5246488871 dns-udp-responses-sent-ipv6: 959504395 dns-tcp-responses-sent-ipv4: 117990481 dns-tcp-responses-sent-ipv6: 18110173