--- version: rssac002v3 service: i.root-servers.net start-period: '2019-05-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6714755594 dns-udp-queries-received-ipv6: 1325757407 dns-tcp-queries-received-ipv4: 130680831 dns-tcp-queries-received-ipv6: 25588154 dns-udp-responses-sent-ipv4: 6580134754 dns-udp-responses-sent-ipv6: 1328219136 dns-tcp-responses-sent-ipv4: 126061227 dns-tcp-responses-sent-ipv6: 24775397