--- version: rssac002v3 service: a.root-servers.net start-period: '2017-09-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3112855922 dns-udp-queries-received-ipv6: 386753792 dns-tcp-queries-received-ipv4: 121229234 dns-tcp-queries-received-ipv6: 10198692 dns-udp-responses-sent-ipv4: 3111906031 dns-udp-responses-sent-ipv6: 386718904 dns-tcp-responses-sent-ipv4: 120584624 dns-tcp-responses-sent-ipv6: 10313805