--- version: rssac002v3 service: j.root-servers.net start-period: '2021-08-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6623152261 dns-udp-queries-received-ipv6: 1446539566 dns-tcp-queries-received-ipv4: 573599450 dns-tcp-queries-received-ipv6: 103529676 dns-udp-responses-sent-ipv4: 6115992725 dns-udp-responses-sent-ipv6: 1440385051 dns-tcp-responses-sent-ipv4: 397717553 dns-tcp-responses-sent-ipv6: 101885346