--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6350758957 dns-udp-queries-received-ipv6: 1167273172 dns-tcp-queries-received-ipv4: 245196805 dns-tcp-queries-received-ipv6: 33188173 dns-udp-responses-sent-ipv4: 6170897360 dns-udp-responses-sent-ipv6: 1166481773 dns-tcp-responses-sent-ipv4: 241050381 dns-tcp-responses-sent-ipv6: 33897364