--- version: rssac002v3 service: i.root-servers.net start-period: '2018-01-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4822423843 dns-udp-queries-received-ipv6: 625843231 dns-tcp-queries-received-ipv4: 85581951 dns-tcp-queries-received-ipv6: 13018697 dns-udp-responses-sent-ipv4: 4909887089 dns-udp-responses-sent-ipv6: 624485949 dns-tcp-responses-sent-ipv4: 85725195 dns-tcp-responses-sent-ipv6: 13011798