--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6425214647 dns-udp-queries-received-ipv6: 1373323589 dns-tcp-queries-received-ipv4: 548631040 dns-tcp-queries-received-ipv6: 102806172 dns-udp-responses-sent-ipv4: 5951271320 dns-udp-responses-sent-ipv6: 1368487955 dns-tcp-responses-sent-ipv4: 387373713 dns-tcp-responses-sent-ipv6: 102250485