--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6564960091 dns-udp-queries-received-ipv6: 1348343495 dns-tcp-queries-received-ipv4: 594066711 dns-tcp-queries-received-ipv6: 111777381 dns-udp-responses-sent-ipv4: 6031390475 dns-udp-responses-sent-ipv6: 1343516466 dns-tcp-responses-sent-ipv4: 405494563 dns-tcp-responses-sent-ipv6: 112406197