--- version: rssac002v4 service: a.root-servers.net start-period: '2022-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6644181131 dns-udp-queries-received-ipv6: 1840077106 dns-tcp-queries-received-ipv4: 564689860 dns-tcp-queries-received-ipv6: 56367443 dns-udp-responses-sent-ipv4: 6195294899 dns-udp-responses-sent-ipv6: 1835393425 dns-tcp-responses-sent-ipv4: 407011874 dns-tcp-responses-sent-ipv6: 57622348