--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4932512224 dns-udp-queries-received-ipv6: 1141505717 dns-tcp-queries-received-ipv4: 297251616 dns-tcp-queries-received-ipv6: 99780039 dns-udp-responses-sent-ipv4: 4939164889 dns-udp-responses-sent-ipv6: 1162927360 dns-tcp-responses-sent-ipv4: 285025817 dns-tcp-responses-sent-ipv6: 99848338