--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4837373660 dns-udp-queries-received-ipv6: 698259600 dns-tcp-queries-received-ipv4: 110966192 dns-tcp-queries-received-ipv6: 25989047 dns-udp-responses-sent-ipv4: 4721434438 dns-udp-responses-sent-ipv6: 698000048 dns-tcp-responses-sent-ipv4: 107372272 dns-tcp-responses-sent-ipv6: 26008913