--- version: rssac002v3 service: a.root-servers.net start-period: '2017-09-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3552688767 dns-udp-queries-received-ipv6: 417055372 dns-tcp-queries-received-ipv4: 121822327 dns-tcp-queries-received-ipv6: 10180209 dns-udp-responses-sent-ipv4: 3550717700 dns-udp-responses-sent-ipv6: 417011911 dns-tcp-responses-sent-ipv4: 121795528 dns-tcp-responses-sent-ipv6: 10295048