--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6700835458 dns-udp-queries-received-ipv6: 1401011046 dns-tcp-queries-received-ipv4: 150343615 dns-tcp-queries-received-ipv6: 34923488 dns-udp-responses-sent-ipv4: 6568463123 dns-udp-responses-sent-ipv6: 1386476548 dns-tcp-responses-sent-ipv4: 143922996 dns-tcp-responses-sent-ipv6: 32073446