--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5922015285 dns-udp-queries-received-ipv6: 726858371 dns-tcp-queries-received-ipv4: 133572833 dns-tcp-queries-received-ipv6: 19656778 dns-udp-responses-sent-ipv4: 5964472046 dns-udp-responses-sent-ipv6: 726935032 dns-tcp-responses-sent-ipv4: 131383275 dns-tcp-responses-sent-ipv6: 19661232