--- version: rssac002v3 service: a.root-servers.net start-period: '2021-08-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5911824101 dns-udp-queries-received-ipv6: 1590702827 dns-tcp-queries-received-ipv4: 336401402 dns-tcp-queries-received-ipv6: 193370786 dns-udp-responses-sent-ipv4: 5888151631 dns-udp-responses-sent-ipv6: 1622142989 dns-tcp-responses-sent-ipv4: 320545314 dns-tcp-responses-sent-ipv6: 205949713