--- version: rssac002v3 service: a.root-servers.net start-period: '2017-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3262932492 dns-udp-queries-received-ipv6: 433808458 dns-tcp-queries-received-ipv4: 114397462 dns-tcp-queries-received-ipv6: 10226271 dns-udp-responses-sent-ipv4: 3251059772 dns-udp-responses-sent-ipv6: 430332453 dns-tcp-responses-sent-ipv4: 114161929 dns-tcp-responses-sent-ipv6: 10352748